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Journal articles on the topic 'Corona dentale'
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1
Winn, D. M., J. A. Brunelle, R. H. Selwitz, L. M. Kaste, R. J. Oldakowski, A. Kingman, and L. J. Brown. "Coronal and Root Caries in the Dentition of Adults in the United States, 1988–1991." Journal of Dental Research 75, no. 2_suppl (February 1996): 642–51. http://dx.doi.org/10.1177/002203459607502s04.
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Dental public health policy planning requires accurate and current information about the extent of caries in the United States population. These data are available from the caries examination from Phase 1 of the Third National Health and Nutrition Examination Survey, which found that 94% of adults in the United States show evidence of past or present coronal caries. Among the dentate, the mean number of decayed and filled coronal surfaces per person was 21.5. Dentate females had a lower number of untreated coronal tooth surfaces with caries (1.5), but a higher mean number of treated and untreated surfaces per person (22.7) than males, with scores of 2.1 and 20.2, respectively. Estimates for race-ethnicity groups were standardized by age and gender to control for population differences among them. Dentate non-Hispanic blacks (11.9) and Mexican-Americans (14.1) had half the number of decayed and filled coronal surfaces as non-Hispanic whites (24.3), but more untreated surfaces (non-Hispanic whites, 1.5; non-Hispanic blacks, 3.4; Mexican-Americans, 2.8). Mexican-Americans were most likely to be dentate, had the highest average number of teeth, and had 25% fewer decayed, missing, and filled coronal surfaces (37.6) than non-Hispanic blacks (49.2) and non-Hispanic whites (51.0). Root caries affected 22.5% of the dentate population. Blacks had the most treated and untreated root surfaces with caries (1.6), close to the value for Mexican-Americans (1.4). The score for non-Hispanic whites was 1.1. Untreated root caries is most common in dentate non-Hispanic blacks (1.5), followed by Mexican-Americans (1.2), with non-Hispanic whites (0.6) having the fewest untreated carious root surfaces. Race-ethnicity groups were disparate with respect to dental caries; effort is needed to treat active caries common in some population subgroups.
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Oliveira-del Río, Juan A., Alcira M. Alvarado-Solórzano, and Betty E. Guanotoa-Lincango. "Características de traumatismo dental en niños de 5-13 años de edad." Polo del Conocimiento 3, no. 5 (May 21, 2018): 150. http://dx.doi.org/10.23857/pc.v3i5.494.
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<p style="text-align: justify;">En la actualidad los traumatismos dentales, son la segunda causa de demanda de atención dental en niños tras la caries dental. Se realizó un estudio observacional descriptivo, de corte transversal, con la finalidad de determinar las características epidemiológicas de los traumatismos dentales en niños de 5 a 13 años de edad. La población de estudio estuvo conformada por 52 niños, que acudieron a consulta diagnosticados con traumatismos dentales. Entre las principales variables analizadas figuraron: edad, sexo, factores predisponentes y desencadenantes y tipo de trauma, respetándose la ética médica. En los resultados, predominó el sexo masculino entre 8 y 10 años de edad, siendo el resalte aumentado y la incompetencia bilabial los factores predisponentes con mayor prevalencia, donde la fractura no complicada de corona fue la lesión más marcada, desencadenados por la práctica de deportes. Los traumatismos dentales fueron considerados una situación de urgencia a diagnosticar y tratar de forma rápida y certera por el odontólogo.</p>
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De Freitas, Bruna Neves, Karen Pintado-Palomino, Bruna Santos Honório Tonin, Pedro Bastos Cruvinel, Ana Paula Macedo, Camila Tirapelli, Takami Hirono Hotta, and Wilson Matsumoto. "Adaptación marginal de coronas de disilicato de litio obtenidas mediante técnicas de escaneo (CAD/CAM): análisis in vitro con microscopía confocal." Odontología Sanmarquina 24, no. 2 (March 31, 2021): 5–11. http://dx.doi.org/10.15381/os.v24i2.19895.
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Objetivo. El objetivo de este estudio fue evaluar la adaptación marginal de coronas de disilicato de litio obtenidas mediante técnicas de escaneo (CAD/CAM), antes y después de la cristalización, a través de análisis in vitro con microscopía confocal (MC). Métodos. Fueron confeccionadas 16 réplicas en poliuretano a partir de la pieza 1.4, de modelo typodont, tallada para corona total. Las réplicas fueron divididas en dos grupos, de acuerdo a la técnica de escaneo: Técnica Indirecta (Grupo IND, n=08), donde modelos de yeso fueron escaneados con escáner de laboratorio (inEos X5, Sirona Dental Systems) y Técnica Directa (Grupo DIR, n=08), donde modelos typodont fueron escaneados con escáner intraoral (CEREC BlueCam, Sirona Dental Systems). A seguir, se fresaron (inLab MC XL, Sirona Dental Systems) coronas en disilicato de litio (IPS e.max CAD, Ivoclar Vivadent) y se adaptaron a las réplicas. Se evaluó la adaptación marginal con análisis de MC en dos momentos, antes y después de la cristalización del disilicato de litio. Los datos fueron analizados con la prueba de Mann-Whitney, t de Student y Wilcoxon (α= 0,05). Resultados. Hubo una diferencia estadísticamente significativa en la adaptación marginal horizontal entre los grupos IND y DIR después de la cristalización (p=0,05). En el grupo IND, la comparación de la adaptación marginal vertical antes y después de la cristalización mostró una diferencia estadísticamente significativa (p=0,038). Conclusiones. Las coronas de disilicato de litio obtenidas mediante escaneo directo (CAD/CAM) presentaron menor desajuste marginal vertical. La etapa de cristalización afectó la adaptación marginal de las coronas.
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Hayward, K. M., and Muljono. "The dental/alveolar contrast in Javanese." Bulletin of the School of Oriental and African Studies 54, no. 1 (February 1991): 126–44. http://dx.doi.org/10.1017/s0041977x00009642.
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The present paper describes a palatographic investigation of Javanese coronal stops. Javanese exhibits stop consonants at both dental and alveolar places of articulation. In the current roman orthography, the dentals are represented by the single letterst, d, while the alveolars are represented by the digraphsth, dh. Thus, for example,titik[titI?] ‘full stop’ contrasts withthithik[titI?] ‘a little’.
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Pinheiro, S., V. Mota, S. Silva, and M. Benigno. "Topographic analysis of the mandibular canal in coronal section, in the region of molars." Journal of Morphological Sciences 34, no. 04 (October 2017): 251–56. http://dx.doi.org/10.4322/jms.108417.
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AbstractThe studies about bone resorption contributed greatly to the advancement of rehabilitation with dental implants and Buccomaxillo facial Surgery and Traumatology. This phenomenon leads to a more superficial localization of the mandibular canal in relation to the alveolar ridge when teeth are lost, limiting and hindering the installation Bone tissue, of implants, as well as other surgical procedures. This anatomical study aimed to analyze and interpret the distances from the mandibular canal to the alveolar ridge, in groups of dentate individuals and toothless, comparing them statistically, so 20 adult male cadavers divided into two groups, namely group A, formed by 10 dentate and group B, consisting of 10 toothless individuals. All their teeth were dissected and then, were checked the measurements of the distances between the roof of the mandibular canal and the alveolar ridge. The averages found were enlightening to say that bone resorption has consequences for treatment and surgery for dental implants, due to the decreasing bone support for the implantation and other surgical procedures, increasing the risk of injury to the inferior alveolar neurovascular bundle.
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González González, Gustavo A. "Inflamación mandibular en el tapir centroamericano (Tapirus bairdii): cambio de dentición y retención de la corona de dientes deciduos como potencial etiología." Revista de Medicina Veterinaria 1, no. 41 (August 26, 2020): 49–55. http://dx.doi.org/10.19052/mv.vol1.iss41.5.
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El tapir de Baird o centroamericano (Tapirus bairdii), también conocido como danta, habita en bosques tropicales, bosques montañosos bajos, bosques caducifolios, praderas inundadas y humedales. La anatomía interna del tapir es análoga al caballo doméstico, al igual que su fórmula dental. Los molares carecen de cemento y tienen coronas pequeñas o bajas, por lo que son totalmente lofodontes. La inflamación mandibular en los tapires es muy común en las colecciones cautivas y su etiología y prevalencia han sido objeto de discusión, pero no se han definido. Este trabajo sugiere al cambio de dentición y la retención de la corona “tapas” como una posible etiología de inflamación mandibular, basado en su contraparte: el caballo, que fisiológicamente sobrelleva el siguiente proceso: a medida que los dientes permanentes se desarrollan por debajo de los dientes primarios, se desarrolla un proceso fisiológico de reabsorción y desplazamiento de vértices dentales, lo que acelera la erupción del diente caducifolio. La presión continua hace que las raíces sean reabsorbidas, y el poco suministro de sangre lleva a que los tejidos blandos sufran necrosis y, por ende, que la “tapa” se afloje. Tanto la gingivitis como la enfermedad periodontal pueden resultar de los restos radiculares de las raíces fracturadas que permanecen en el espacio subgingival después de eliminada “la tapa”, aunado a la contaminación con los alimentos y bacterias
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Pravallika, Dr Thorikonda Sai, Dr Sheetal Akula, Dr Kurnool Balaji, Dr Maddela Jyothi, and Dr Jaidupally Ramvilas Reddy. "Corona Virus – The Dental Outlook." International Journal of Scientific Research and Management 8, no. 04 (April 19, 2020): 47–52. http://dx.doi.org/10.18535/ijsrm/v8i04.b01.
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AIM: This review provides an overview of the corona virus and to determine the precautionary recommendations to be taken by the Dental Professionals.
BACKGROUND: Corona virus (COVID-19) in no time has captured the world’s attention and is declared as a pandemic by WHO.
REVIEW RESULTS: Dental care settings inevitably carry the risk of infection due to the specificity of the procedures and effective preventive measures can help the spread of the infection.
CONCLUSION: The outbreak of corona virus had already lead to huge number of deaths and its risk continues to remain high. Infection control measures are necessary to help control the situation.
KEYWORDS: Corona virus, Pandemic, Dental considerations
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De la Cruz Sedano, Gabriela Silvia, Abigail Katherine Ventura Flores, Jackeline Jackeline Jara Porroa, and Guido Alberto Perona-Miguel de Priego. "Erupción dentaria: bases moleculares. Un artículo de revisión." Revista Científica Odontológica 8, no. 1 (April 28, 2020): 1–6. http://dx.doi.org/10.21142/2523-2754-0801-2020-009.
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La erupción dental es un proceso dinámico que se inicia cuando se forma el germen dentario en su cripta de desarrollo hasta que el diente hace su aparición en boca. El folículo dental tiene un papel importante en la formación coronal y radicular del diente, y es esencial para la erupción dentaria. Para que un diente entre en erupción es necesario que exista resorción del hueso alveolar que cubre la corona del diente, de modo que se forme un camino a través del cual el diente se moverá. Para esto, se producen una serie de procesos moleculares y celulares localizados y programados genéticamente que permiten la osteogénesis y la osteoclastogénesis del hueso alveolar a fin de formar la vía de erupción. El objetivo de esta revisión es dar a conocer los posibles eventos celulares y moleculares que influyen en el proceso de erupción dentaria, ya que el mecanismo exacto aún es desconocido.
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Flanagan, Dennis. "Avoiding Osseous Grafting in the Atrophic Posterior Mandible for Implant-Supported Fixed Partial Dentures: A Report of 2 Cases." Journal of Oral Implantology 37, no. 6 (December 1, 2011): 705–11. http://dx.doi.org/10.1563/aaid-joi-d-10-00094.
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Bone atrophy occurs after tooth extraction in the posterior mandible, placing the mandibular canal and its neural, arterial, and venous contents closer to the osseous facial aspect and the coronal crest. This proximity places the structure in danger of damage when dental implants are surgically placed to support fixed or removable prostheses. Several options are available to treat these areas for implant-supported fixed and removable complete or partial dentures. Osseous grafting and ridge expansion are surgical options that enable acceptance of standard sized dental implants but have serious morbidities. Additionally, vertical osseous augmentation is not predictable at this time. Narrow diameter dental implants can be placed to avoid the mandibular canal, but some bone volume situations preclude this. Very wide and very short (6.5 × 5 mm) dental implants may be placed at an angle in atrophic sites to successfully support fixed partial dentures. An anterior guidance occlusal scheme may be used in maxillary dentate patients or group function in maxillary complete denture patients. A 100 micron occlusal relief in fixed partial dentures in dentate patients may be required to account for natural tooth intrusion and to prevent occlusal overload of the implant-supported partial denture.
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Mathew, Melwin, Sunil Kumar Nettemu, Rajesh Hosadurga, Sowmya Nettemu, Vijendra Pal Singh, and K. Meena Anand. "Clinical implications of Novel COVID-19 on dental practice — An overview." JOURNAL OF MULTIDISCIPLINARY DENTAL RESEARCH 6, no. 2 (December 20, 2020): 69–74. http://dx.doi.org/10.38138/jmdr/v6i2.12.
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The Corona Virus Disease 2019 (COVID-19) caused by a zoonotic virus is considered to be highly contagious and transmissible from human to human. COVID-19 pandemic has posed a significant challenge for dentists. Dentists and auxiliary staff are at high risk due to the possibility of disease transmission through the aerosols generated during dental treatment. This article focuses on understanding the general characteristics of COVID-19, routes of transmission among dental professionals and outlines safe dental practice measures to be adopted during clinical practice amidst the pandemic. This paper discusses the clinical implications of COVID-19 on general dental practice. Keywords: COVID 19; dental care; aerosol; transmission; guidelines; corona virus
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Hidalgo Lostaunau, Rony Christian. "Solución estética atípica con corona y carilla de cerámicas reforzadas con alúmina: Reporte de Caso." Revista Estomatológica Herediana 19, no. 1 (September 16, 2014): 39. http://dx.doi.org/10.20453/reh.v19i1.1816.
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La restauración y rehabilitación de los incisivos centrales implica conjugar filosofías de odontología mínimamente invasiva, conocimiento de materiales dentales y procedimientos clínicos-laboratoriales, habilidades clínicas precisas (preparación dentaria, manejo de la guía anterior, temporización, selección del color, etc.) y saber conjugar los deseos del paciente de manera que finalmente se logren los mejores beneficios en bien de su salud dental y autoestima personal. La planificación del caso y la adecuada selección de materiales juegan un rol importantísimo en los resultados finales y a largo plazo; el desarrollo de nuevos materialesfacilita cada vez más los resultados buscados y en nuestra práctica clínica intentamos manejar estas nuevas posibilidades, sin embargo se despliegan nuevas alternativas clínicas ante situaciones especiales. El presente artículo relata un caso clínico donde se resuelve emplear una cerámica reforzada de alúmina infiltrada por vidrio y emplear una agente cementante resinoso autoacondicionante / autoadherente. Se aprecia el procedimiento, los resultados a los seis meses de tratamiento y se discuten los resultados satisfactorios del mismo.
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Arsenault, Paul. "Retroflex consonant harmony: An areal feature in South Asia." Journal of South Asian Languages and Linguistics 2, no. 1 (January 1, 2015): 1–28. http://dx.doi.org/10.1515/jsall-2015-0001.
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AbstractRetroflexion is a well-known areal feature of South Asia. Most South Asian languages, regardless of their genetic affiliation, contrast retroflex consonants with their non-retroflex dental counterparts. However, South Asian languages differ in the phonotactic restrictions that they place on retroflex consonants. This paper presents evidence that a large number of South Asian languages have developed a co-occurrence restriction on coronal obstruents that can be described as retroflex consonant harmony. In these languages, roots containing two non-adjacent coronal stops are primarily limited to those with two dentals (T…T) or two retroflexes (Ṭ…Ṭ), while those containing a combination of dental and retroflex stops are avoided (*T…Ṭ, *Ṭ…T). Historical-comparative evidence indicates that long-distance retroflex assimilation has contributed to the development of this phonotactic pattern (T…Ṭ → Ṭ…Ṭ). In addition, the paper demonstrates that the distribution of languages with and without retroflex consonant harmony is geographic in nature, not genetic. Retroflex consonant harmony is characteristic of most languages in the northern half of the South Asian subcontinent, regardless of whether they are Indo-Aryan, Dravidian or Munda (but not Tibeto-Burman). It is not characteristic of Indo-Aryan and Dravidian languages in the south. Thus, retroflex consonant harmony constitutes an areal feature within South Asia.
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Sosiawan, Agung, Dian Agustin Wahjuningrum, Anuj Bhardwaj, Kratika Mishra, Sheetal Khandelwal, Amit Bhardwaj, and Shivani Bhardwaj. "Six Commandments of Treatment Protocols During Covid-19 Pandemic in Dentistry." Biomolecular and Health Science Journal 4, no. 1 (June 30, 2021): 52. http://dx.doi.org/10.20473/bhsj.v4i1.27427.
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In December 2019, an outbreak in the city of Wuhan, Hubei China occurred and was named COVID- 19 by the World Health Organization and declared as a pandemic on January 30, 2020. The etiologic agent of acute respiratory disease is the novel corona virus 2019 (2019-nCoV) or the extreme acute respiratory syndrome corona virus 2 (SARS-CoV-2). During many dental operations, aerosols are produced and these aerosol methods, which are major problems for dentists, have become the main area of concern in dentistry. Dentists are at greatest risk since they are located close to the oropharynx. This study summarizes the effect of coronavirus disease 2019 (COVID-19) on dental care, administration, and emergency dental treatment service. It also identifies COVID-19 and explains about six commandments for dental practitioners during the treatment process to be practiced during the pandemic.
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Ghafoor, Sarah, and Ansa Javed Akram. "Understanding COVID-19 through the Dental Lens." BioMedica 36, no. 2S (June 24, 2020): 185–93. http://dx.doi.org/10.51441/biomedica//biomedica/5-441.
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<p>Corona virus Disease-19 (COVID-19) is a global health pandemic that has affected life of every individual in the world. It is caused by a novel Corona virus strain that has caused seventh Corona virus infection that has affected human population, named as “COVID-19” virus by the World Health Organization. Previously, six Corona virus infections have affected humans but those caused by SARS-CoV and MERS-CoV have proved to be more lethal. Angiotensin Converting Enzyme 2 (ACE2) has been found as the receptor for COVID-19 through which cellular entry of the virus is mediated into the body. These receptors are abundantly present in the oral cavity especially on the epithelial cells of the tongue, oral mucosa and the gingiva. Saliva is an oral bio-fluid of the oral cavity in which high titres of the virus have been identified during early and later stages of infection. Saliva collection is a non-invasion method and can act as a diagnostic tool for COVID-19 disease. Common oral symptoms of the disease include transient loss of taste, smell and dryness of mouth. Precautionary measures must be taken by dentist before carrying out any dental procedure for safety of the health care professional, staff and also the patient. Dental community must think of the “new normal” regarding clinical dental care in light of post-COVID-19 situation.</p>
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Sánchez Santamaría, Ana María, Ana Catalina Castaño Posada, Federico Latorre Correa, Junes Abdul Villarraga Ossa, Juan Gustavo Diosa Peña, and Samuel David Giraldo Gómez. "Simulación de la microdeformación ósea de bruxismo en implante dental anterior." Revista Nacional de Odontología 16, no. 1 (September 4, 2020): 1–18. http://dx.doi.org/10.16925/2357-4607.2020.01.12.
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Introducción: el propósito de esta investigación fue evaluar la microdeformación ósea del bruxismo con implantes dentales por medio del método de análisis de elementos finitos (FEA).
Materiales y métodos: se modeló un (1) implante Tapered Screw-Vent® (ref. TSVB10 Zimmer Dental) de 13mm de longitud x 3.7mm de diámetro con una plataforma de 3.5 mm, un pilar en Zirconio, un tornillo, agente cementante cemento de resina, una corona cerámica monolítica de un incisivo central superior, hueso cortical y hueso esponjoso, utilizando el Software CAD de Solid Works 2010 (SolidWorks Corp., Concord, MA, USA), y posteriormente se procesó y se analizó a través del Software ANSYS versión 14. Se evaluaron los esfuerzos von Mises y microdeformación ósea (µstrain), aplicando esfuerzos en sentido oblicuo con magnitudes de 200N y 800N. Este análisis permitió evaluar y comparar la (µstrain), tanto en el hueso cortical como en el hueso esponjoso en dos magnitudes 200N Y 800N.
Resultados: cada uno de los elementos de la estructura modelada (corona, pilar, tornillo, implante, hueso cortical y esponjoso) sometida al incremento de esfuerzos, presentó valores von Mises y µstrain particulares con un comportamiento lineal. Al someter la estructura modelada a esfuerzos de 200N y 800N, ninguno de los componentes sufrió deformaciones permanentes, es decir, no se superó el límite de fluencia.
Conclusión: de acuerdo al comportamiento mecánico de la estructura modelada en magnitudes de 800N, es posible la utilización de un implante dental en un incisivo central superior, debido a que las fuerzas parafuncionales generadas por el bruxismo no son superiores a las presentadas en la estructura modelada, en consecuencia, no generan deformaciones permanentes en el hueso.
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Simon, Raena, Abhishek Poojary, Ajay Rao H.T., Sharan S. Sargod, Reshma Suvarna, Afreen Shabbir, Nanditha Hegde, and Shrivya Saloni Mahaveeran. "Coronavirus - New Variants and New Symptoms." Journal of Evolution of Medical and Dental Sciences 10, no. 36 (September 6, 2021): 3166–70. http://dx.doi.org/10.14260/jemds/2021/643.
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Corona virus disease 2019, also known as Covid-19, is a public health crisis that is threatening the world. It is rapidly spreading and highly contagious. The etiological agent is SARS-CoV-2 (severe acute respiratory syndrome corona virus - 2). It is even more contagious than SARS - CoV and Middle East respiratory syndrome corona virus (MERS - CoV). This ailment was declared as a ‘pandemic’ by WHO and Public Health Emergency of International Concern (PHEIC). It was reported first in Wuhan, China in 2019. The most probable route of human to human transmission is mainly through respiratory droplets, touching or coming into contact with infected person or contaminated surfaces. Recently corona virus has mutated and new strains have been produced. Among the new variants, the UK variant which is known as ‘B.1.1.7’ is 40 to 70 percent more transmissible than the original corona strain. New strains of corona virus have been producing new strange symptoms. These symptoms are called ‘Non classic symptoms’. New strains are causing more weakness and lethargy. Oral manifestations are more common in the new variants. Pediatric symptoms vary depending on the stage of the disease, prior health status, and the presence of comorbidities. For the first 3 months during Covid-19 pandemic, it was expected to be an immunizing non - relapsing disease. But many secondary infection cases are reported recently. On considering the modes of transmission, dentists are in a very high risk category, because of the close contact with patients and the nature of the dental treatment. This article mainly emphasizes the importance of new strains of corona virus and its symptoms, oral manifestations, pediatric symptoms, reinfection potential and dental considerations. KEY WORDS Covid-19, Variants, Coronavirus, Oral Manifestations,Dentistry.
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Trelia Boel, Dewi Kartika, Ervina Sofyanti, Dennis, and Navanitha Naidu. "Estimation Of Dental Age Using Coronal Pulp Cavity Index (CPCI) On Lower Second Premolar And First Molar With Periapical Radiographic Analysis." International Journal of Research in Pharmaceutical Sciences 11, no. 2 (April 28, 2020): 2205–9. http://dx.doi.org/10.26452/ijrps.v11i2.2171.
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Estimation of dental age in forensic odontology is crucial in biological dentistry Coronal Pulp Cavity Index (CPCI) as one method to check the correlation between the reduction of the coronal pulp cavity and chronological age. The present study aims to find out whether CPCI method can be used to estimate the dental age on lower second premolar and first molar with periapical radiographic analysis. The cross sectional study was conducted on 60 patients (30 males and 30 females) in the age range of 21 and 30 years. They were subjected to periapical radiographs on lower second premolar and first molar. The Coronal Pulp Cavity Height (CPCH) and Coronal Length (CL) was measured using vision measuring scope DC 3000 and electronic digital caliper. The values obtained were subjected into the formula of TCI = [CPCL × 100]/CL. The mean of TCI score and average chronological age were analyzed using paired T test to find out the correlation between the chronological age and the estimated dental age, P > 0.05 is considered as significant. There was no significant difference between the estimated dental age and chronological age in both lower second premolars (p=0.119) and first molars (p=0.224). CPCI method can be used to estimate the dental age on healthy lower second premolar and first molar.
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Gheorghiu, Irina-Maria, Paula Perlea, Alexandru A. Iliescu, Sânziana Scărlătescu, and Anca-Nicoleta Temelcea. "Specific aspects of the dental restorative treatments in premolars." Romanian Journal of Stomatology 63, no. 2 (June 30, 2017): 88–93. http://dx.doi.org/10.37897/rjs.2017.2.7.
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This article reviews the therapeutic approaches of the premolars and highlights the special aspects of the dental restorative treatments in premolars. The direct restoration of the coronal hard tissues loss in premolars is conditioned by several aspects involved, such as: topographic localization on the dental arches, aesthetical requirements, the association of different coronal dental lesions. A characteristic aspect of the premolars direct resin composite restorations is the phenomenon of cuspal flexure; the causes, consequences, as well as the ways of its prevention are presented in the article.
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Bhandari, Amit, Vanshika Jain, and Rashi Bhandari. "COVIDentistry Combating Corona Virus Spread in Dental Setup Indian Prospective." Defence Life Science Journal 6, no. 1 (February 23, 2021): 94–106. http://dx.doi.org/10.14429/dlsj.6.16190.
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Making its first presence in humans in China in late 2019, SARS-CoV-2 has been identified as a highly contagious viral particle causing distress of lower respiratory system, named COVID-19. Since January 2020, there has been a worldwide increase in the number of COVID-19 cases and associated deaths. Owing to the contagious nature of the disease and socializing human culture, the disease has spanned over continents resulting in some countries being more severely affected than others. Since the first knowledge of the disease, interim guidelines have been constantly issued by competent authorities to safeguard the interest of masses and healthcare professionals. As and when new details are procured, these guidelines are adequately modified and circulated. As a standard measure, all individuals are expected to maintain social distancing, cover their face with a mask during any outdoor activity and practice hand hygiene and cough etiquettes. Respiratory droplet spread is the most potential source identified for this uncontrolled disease spread. Being of smaller size, aerosols produced during medical treatment too act a potential source of viral particle dissemination. Almost all dental procedures involve production of aerosols in some form or the other, irrespective of the kind of instrumentation used. Additionally, proximity to the oral cavity, one of the sources of droplet production, poses a high risk of disease contraction by dental healthcare workers and visiting patients. With consideration to dental practice, various guidelines have been issued to minimise and control the spread of COVID-19. This article is written with an aim of reviewing these guidelines and sensitizing and encouraging the dental fraternity to follow them and contribute in the current world health crisis.
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Vianna de Souza Lima, Victória, Karen Rabelo Souza Lima, Fabio Da Silva Matuda, and Renata Amadei Nicolau. "AUMENTO DE COROA CLÍNICA NO SORRISO GENGIVAL – REVISÃO DE LITERATURA." Revista Univap 22, no. 40 (May 2, 2017): 851. http://dx.doi.org/10.18066/revistaunivap.v22i40.1698.
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Atualmente cada vez mais os padrões de beleza da sociedade têm norteado a estética odontológica. Esta estética tem como fundamento básico a harmonização, não somente pela cor dos elementos dentais, como também da proporção entre os dentes e a altura cervical das margens gengivais. Por meio de um levantamento bibliográfico buscou-se identificar técnicas e indicações de tratamento para o sorriso gengival, a fim de obter resultados estéticos, preservando a saúde bucal do paciente. Observou-se que, para corrigir a exposição excessiva do tecido gengival, técnicas de aumento da exposição da coroa dental e diminuição do volume gengival têm sido propostas. Tais técnicas são conhecidas como cirurgias de aumento de coroa clínica. Contudo, cabe ao profissional realizar um diagnóstico preciso da região a ser tratada, para que a abordagem clínica individualizada e segura possa ser aplicada, proporcionando ao paciente o sorriso esperado, uma melhor condição ao periodonto, sempre buscando a saúde bucal.
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Yogeshwari, Anubha Agarwal, and Himanshu Aeran. "How prepared were we? A study to assess the knowledge, attitude and practice of dental surgeons regarding the Covid 19 pandemic in district Dehradun." International Journal of Oral Health Dentistry 7, no. 2 (July 15, 2021): 123–30. http://dx.doi.org/10.18231/j.ijohd.2021.026.
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The novel corona virus disease 2019 has been declared a global public health emergency & is affecting people across the globe. Dental Surgeons are at an invariably high risk of contracting COVID 19. Since all dentists are slowly resuming their full practice they shall be fully prepared. Aim of the study is to assess the knowledge, attitude & practise of Dental Surgeons regarding the novel Corona Virus Disease 2019 in District, Dehradun. An online Questionnaire was circulated among dental surgeons in District, Dehradun. The Questionnaire consisted of 5 sections: 1. Consent, 2. Epidemiological Data, 3. Knowledge Based Questions (11 Questions), 4. Attitude Based Questions (8 Questions), 5. Practice Based Questions (11 Questions). 107 responses were collected in total. Most dental surgeons had a degree of MDS (Masters of Dental Science): 60.7%. Good knowledge and practice scores were observed among 92.7% and 79.5% of the dental surgeons. Significant association of good knowledge scores with qualifications (p = 0.04) and years of practice (p = 0.02) was found; while good practice scores were associated with qualifications only (p = 0.03). Dental surgeons in district Dehradun were found to have good knowledge and practice scores, which is important to skirmish COVID-19. They are hence advised to follow the Center of Disease Control and Prevention (CDC) World Health Organization (WHO), Ministry of Health & Family Welfare (MoHFW) guidelines in their clinics and should sensitize their staff as well. So that they themselves, their staff and patients all remain safe.
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Yolanti, Reni Indah, Suhardjo Sitam, Ganesha Wandawa, and Farina Pramanik. "Estimasi usia prajurit TNI AL berdasarkan Tooth Coronal Index pada digital radiograf panoramik." Jurnal Radiologi Dentomaksilofasial Indonesia (JRDI) 4, no. 3 (December 30, 2020): 61. http://dx.doi.org/10.32793/jrdi.v4i3.591.
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Objectives: The purpose was to determine the estimated chronological age difference between Indonesian Navy soldiers (TNI-AL) and dental age based on the Tooth Coronal Index on panoramic digital radiographs, which are used as antemortem data for the purposes of identifying Indonesian Navy soldiers if they have an accident while on duty or on the battlefield where only tooth remains.
Material and Methods: The method used was a cross-sectional observational survey with the sampling technique using purposive sampling. This study used 86 digital panoramic radiographs of Indonesian Navy soldiers who were assigned abroad from 2015-2017 at the Dental Radiology Installation of Ladokgi TNI AL R.E. Martadinata. The teeth measured were mandibular first molars with the Tooth Coronal Index (TCI) method, which is a method of estimating age based on secondary dentin deposition and tooth pulp size on dental radiographs.
Results: The results of the chronological age difference with the dental age of Indonesian Navy soldiers using the Tooth Coronal Index (TCI) method on a panoramic digital radiograph performed on mandibular first molars were an average of 6.3 years.
Conclusion: The dental age of Navy soldier is higher than chronological age.
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Sheoran, Lalita, Monika Sehrawat, Divya Sharma, Dania Fatima, and Marikinda Manzoor. "A literature review on precautionary measures in dental practice during the pandemic: Covid-19." IP Indian Journal of Orthodontics and Dentofacial Research 7, no. 2 (July 15, 2021): 98–101. http://dx.doi.org/10.18231/j.ijodr.2021.018.
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During the spread of pandemic disease, dental practice come across the highest risk of corona virus infection by the exposure from patient saliva, aerosols generation during the dental procedure, blood contamination during oral surgical procedure. This virus can be transmitted from symptomatic to asymptomatic individual through aerosol spread, saliva contamination. Due to its ability of airborne transmission, so aerosols generated through natural activity or during the time of any dental treatment procedure has the ability to transmit the virus from infected person to the surrounding person.
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Velozo, Christianne, Hugo Dantas, Frederico Barbosa de Sousa, and Diana Santana de Albuquerque. "Análise em micro-CT de dente rachado em segundo molar mandibular com anatomia em C após trauma oclusal: Relato de caso." Research, Society and Development 10, no. 3 (March 24, 2021): e52210313840. http://dx.doi.org/10.33448/rsd-v10i3.13840.
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O objetivo do presente estudo foi analisar em micro-CT dente extraído por cracked tooth. Uma mulher de 38 anos, branca, com queixa de occasional discomfort ao morder caroço de milho de pipoca, procurou a urgência. Após exame clínico intra-oral e radiográfico, o segundo molar mandibular direito (dente 47) foi diagnosticado com polpa viva e fratura das cúspides linguais, e após remoção de restauração de amálgama constatou-se incomplete fracture initiated from the crown na crista proximal distal. O plano de tratamento iniciou-se com reabilitação protética através de coroa total. Três meses depois sintomas de pulpite irreversível sintomática. A cavidade pulpar foi acessada através da coroa protética e o dente foi tratado endodonticamente. Dois anos depois o paciente apresentou fístula próxima a sulco gengival e sondagem periodontal de 12mm no centro da superfície distal. Ao exame tomográfico de feixe cônico observa-se extensa perda óssea atingindo o canal mandibular. O plano de tratamento foi a exodontia do elemento dentário. O dente extraído foi então submetido ao escaneamento no micro-CT. Na análise das imagens do micro-CT do dente extraído, constatou-se dente rachado constatou-se, estendendo-se da coroa até a raiz proximal (face distal). Foi verificado também má adaptação do cone de guta-percha no terço apical do tratamento endodôntico realizado. Através deste relato, podemos inferir que, o diagnóstico de dente rachado é um desafio na prática clínica, e a propagação corono-radicular da rachadura está associada a infiltração microbiana e consequente risco de perda do elemento dental.
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De Bitencourt, Patric Vinicius Machado, Simone Ayang De Morais Gandolfi, Simone Ayang De Morais Gandolfi, Helena Alvez Da Silva, Helena Alvez Da Silva, Dalila Meazza Damo, Dalila Meazza Damo, Guilherme Anziliero Arossi, and Guilherme Anziliero Arossi. "Coroa total em resina composta direta: relato de dois casos clínicos." Revista de Odontologia da Universidade Cidade de São Paulo 28, no. 1 (January 1, 2016): 65. http://dx.doi.org/10.26843/ro_unicid.v28i1.234.
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Dentes com grande destruição coronária submetidos a tratamento endodôntico devem ser reconstruídos por meio da inserção de um pino intrarradicular, com finalidade de se obter retenção para o material restaurador e melhor distribuição de forças sobre o remanescente dental. A reconstrução coronária desses elementos dentais pode ser realizada com técnicas restauradoras indiretas ou diretas. A evolução das técnicas operatórias e das propriedades físicas, mecânicas e estéticas das resinas compostas tem ampliado suas indicações clínicas, e, quando associadas a pinos intracanais cimentáveis, têm permitido avanços nas reconstruções dentárias. Muitas situações clínicas, que tradicionalmente apresentavam soluções protéticas, hoje podem ser resolvidas através de restaurações diretas com resina composta. Este trabalho apresenta dois casos clínicos onde se realizaram alternativas viáveis de reabilitação de dentes com grande destruição coronária utilizando reconstruções totais diretas com uma resina composta micro-híbrida como material de eleição, associada à utilização de um pino de fibra de vidro e um pino metálico pré-fabricado. Em ambos os casos, foram realizadas as cimentações dos pinos intracanais com cimento ionomérico modificado por resina, seguindo o protocolo tradicional para desobturação dos canais radiculares. Associada ao pino de fibra de vidro foi utilizada a técnica da matriz de silicona como meio para reconstruir a coroa dental, enquanto que junto ao pino metálico lançou-se mão da matriz de Ableh. Concluiu-se que as técnicas descritas constituem procedimentos alternativos, de baixo custo e rápida elaboração, conseguindo suprir as necessidades dos pacientes, demostrando ser uma boa opção para reabilitação de grandes destruições coronárias.
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G. Sandoval DDS, MSc, Nathália, Nayra S. C. Lima DDS, MSc, Willian G. Bautz DDS, PhD, Leticia N. Gama-de-Souza DDS, PhD, and Karla L. A. Coburn DDS, PhD. "Matrix Metalloproteinase 2: A Possible Role inTooth Development and Eruption." Odovtos - International Journal of Dental Sciences 21, no. 1 (January 1, 2019): 41–51. http://dx.doi.org/10.15517/ijds.v21i1.35327.
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Introduction: Tooth development results from a highly coordinated epithelial-mesenchyme interaction in which mesenchyme cells originate the dental papilla and dental follicle, while ectodermal cells originate the enamel organ. Simultaneously, bone tissue is formed around the developing tooth, trapping it in a bony crypt. Tooth eruption requires the resorption of the coronal part of the bony crypt, followed by degradation of the lamina propria, most likely by metalloproteinases (MMPs) activity. Objectives: The aim of this research was to determine MMP-2 expression in the dental germ cells (ameloblasts, odontoblasts, dental papilla and dental follicle) and surrounding tissues (alveolar bone and lamina propria) of rat molars throughout the eruptive process. Material and Methods: A total of 24 rats (4,6,9,11,14 and 16 days old) were used in this study. MMP-2 was detected through immunohistochemistry. A qualitative analysis was performed to investigate the expression of MMP-2 in the dental germ cells, lamina propria, and coronal and basal regions of the bony crypt. Results: MMP-2 expression was observed in the dental papilla cells, dental follicle, ameloblasts, odontoblasts and bone cells from the coronal and basal regions of the bony crypt. MMP-2 was also detected in the lamina propria during the mucosal penetration stage of tooth eruption. Conclusion: We conclude that MMP-2 may be important for the extracellular matrix rearrangement necessary for tooth development and secretion of its mineralized tissues. We also conclude that MMP-2 may play a role in the extensive tissue remodeling during the intra-and-extra-osseous phases of the tooth eruption process.
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Palomino Rios, Ethel Violeta, Gilmer Torres Ramos, and Marya Barzola Loayza. "Uso de coronas de acetato para la confección de coronas de resina en dientes primarios: Reporte de caso." REVISTA ODONTOLOGÍA PEDIÁTRICA 20, no. 1 (July 22, 2021): 25–32. http://dx.doi.org/10.33738/spo.v20i1.159.
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Siendo una de las opciones de restauración el uso de la técnica de coronas de acetato, se optó por ésta debido a los resultados estéticos que ofrece y por sus pocos pasos clínicos. Cumpliendo así con nuestro objetivo de mantener la integridad de las piezas y conservarlas en su espacio, mediante el uso de coronas de resina confeccionadas bajo esta técnica. La metodología utilizada fue el reporte de caso clínico en paciente de 2 años 09 meses de género masculino con diagnóstico caries dental, donde se realizó coronas de resina con la técnica de coronas de acetato. Para la evaluación clínica a los 12 meses se usaron los criterios de evaluación para las restauraciones directas e indirectas según la World Dental Federation. No presentaron fractura y recidiva de caries. Las coronas confeccionadas con ésta técnica fueron bien aceptadas debido a sus resultados imperceptibles, bajo costo y menor tiempo clínico. Por lo que el uso de ésta técnica sería una opción de tratamiento, pero se requieren más estudios para determinar sus ventajas a largo plazo.
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Patil, Snigdha, Babita Yeshwante, Shivani Kotewar, and Nitin Kothari. "Prosthodontics in COVID-19 era: The Right Prospective." Indian Journal of Contemporary Dentistry 9, no. 1 (February 3, 2021): 16–24. http://dx.doi.org/10.37506/ijocd.v9i1.13973.
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Since its emergence in December 2019, corona virus disease 2019 (COVID-19) has impacted severalcountries, affecting more than 90 thousand patients and making it a global public threat. The routes oftransmission are direct contact, and droplet and possible aerosol transmissions. Due to the unique natureof dentistry, most dental procedures generate significant amounts of droplets and aerosols, posing potentialrisks of infection transmission. Understanding the significance of aerosol transmission and its implicationsin dentistry can facilitate the identification and correction of negligence in daily dental practice.
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Bulbuk, Olena, and Mykola Rozhko. "Optimization of Diagnostic Process in Assessing the Extent of Dental Hard Tissue Defects after Endodontic Treatment." Galician Medical Journal 23, no. 4 (November 1, 2016): 201642. http://dx.doi.org/10.21802/gmj.2016.4.2.
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The selection of an optimal treatment is one of the problems when restoring the defects of dental hard tissues after endodontic treatment. The work aims at studying the percentage ratio of the volume of the coronal portion of the tooth to its crown that will allow us to optimize the determination of the extent of dental hard tissue defect after endodontic treatment as well as to choose the optimal method of treatment.The objective of the research was to optimize the diagnostic process when treating damaged coronal portion of the tooth after endodontic treatment through the determination of the percentage ratio of the volume of the coronal portion of the tooth to the total volume of tooth crown for different groups of teeth.Materials and methods. 42 extracted teeth with preserved coronal portions served as the material for our study. The volume of the coronal potion of the tooth as well as the total volume of tooth crown was determined using the method developed by us. Having calculated the ratio of the volume of the coronal portion of the tooth to the volume of tooth crown, we received the volume which is occupied by the coronal cavity of the tooth.Results. We obtained the percentage ratio of the volume which is occupied by the coronal cavity of the tooth compared to its crown for different groups of teeth.Conclusions. To estimate the extent of damage to the coronal portion of the tooth after endodontic treatment, it is recommend using the obtained data, namely, in the maxillary and mandibular front teeth, the coronal portion of the tooth occupies up to 10% of tooth crown volume, while in the maxillary and mandibular grinding teeth, the coronal portion of the tooth occupies up to 5% of tooth crown volume.
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Díaz Soriano, Ana, Luis Pérez Vargas, Manuel Mattos Vela, José Asurza Ruiz, and Luis Bernuy Torres. "Niveles de erosión del esmalte dentario por efecto de agentes clareadores." Odontología Sanmarquina 12, no. 1 (May 14, 2014): 3. http://dx.doi.org/10.15381/os.v12i1.2886.
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Los sistemas clareamiento dental y actualmente el uso de pastas dentales con sustancias clareadoras llevó a plantear el efecto de éstas sobre la superficie del esmalte. La evidencia científica indica que puede ocasionar respuesta en la estructura química con pérdida de sales de calcio. Se midieron las concentraciones de calcio en partes por millón (ppm) en 27 coronas de dientes premolares. La erosión del esmalte fue cuantificada a través de la liberación de sales de Calcio de los especimenes sumergidos en dos tipos de pastas blanqueadoras: Crest Whitening Y Colgate Maxwhite comparadas con un gold estándar, el gel de peróxido de carbamida al 20 %; permaneciendo en contacto directo en una soiución de ellas, las concentraciones de calcio fueron medidas a las 12 h, 24 h y 7 d respectivamente. El método empleado para determinar la concentración de calcio fue la espectrofotometría de absorción atómica. Con el análisis de medias los resultados indican que la pasta Crest Whitening (contiene peróxido) presenta mayor concentración. La de menor concentración de calcio fue la pasta dental Colgate Maxwhite, el gel presenta mayor concentracion de calcio. Existen diferencias significativas entre las concentraciones halladas en las pastas testadas (Anova p<,05) Se concluye que la pasta dental Colgate Maxwhite libera menos sales de calcio que la pasta Gest Whitening cuyo contenido de peróxido al igual que los geles blanqueadores utilizados en el sistema de clareamiento profesional, deben ser de prescripción profesional.
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Harris, Edward F., and Yoav Shiloah. "A Longitudinal Study of Continued Tooth Eruption During Adulthood." Dental Anthropology Journal 20, no. 1 (September 2, 2018): 7–15. http://dx.doi.org/10.26575/daj.v20i1.106.
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Teeth retain their capacity to continue toerupt throughout life. What is less-well appreciated isthat occlusal migration—with corresponding alveolarproliferation—continues as a normal process duringadulthood. Historically, this continuous eruption hasbeen viewed as accommodative for the loss of crownheight due to serious occlusal abrasion. Nowadays,with only trivial wear, the result of continuous eruptionis to increase lower face height during adulthood. Thisstudy reports on changes in the mandibular first andsecond molars in 73 Americans whites (63 females)examined at 17 and again at about 31 years of age.A computer-assisted method was used to measurealveolar and dental changes using the inferior alveolarcanal as a fiducial benchmark. Each molar’s imagewas scaled to the mesiodistal molar crown dimensionmeasured from that subject’s dental cast. Major findingswere: Both lower molars erupted during adulthoodto statistically significant extents, more so in men.Alveolar bone proliferated apace with the coronal toothmigration, so the CEJ-to-crestal bone distance did notchange in these healthy, young, dentate adults. First andsecond molar roots increased in length, apparently bythe progressive deposition of cementum. Prior studieshave documented continuous eruption in peoples withsevere occlusal wear; this study shows that comparableincreases occur without any macroscopic loss of toothsubstance. These normative changes that—assumedlyoccur in both jaws—have discernible, cumulativeeffects on lower face height and facial proportions inadulthood.
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Mello-Moura, Anna Carolina Volpi, Ana Maria Antunes Santos, Gabriela Azevedo Vasconcelos Cunha Bonini, Cristina Giovannetti Del Conte Zardetto, Cacio Moura-Netto, and Marcia Turolla Wanderley. "Pulp Calcification in Traumatized Primary Teeth – Classification, Clinical And Radiographic Aspects." Journal of Clinical Pediatric Dentistry 41, no. 6 (January 1, 2017): 467–71. http://dx.doi.org/10.17796/1053-4628-41.6.9.
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Objective: The aim of this study was to standardize the nomenclature of pulp alteration to pulp calcification (PC) and to classify it according to type, quantity and location, as well as relate it to clinical and radiographic features. Study design: The dental records of 946 patients from the Research and Clinical Center for Dental Trauma in Primary Teeth were studied. Two hundred and fifty PC-traumatized upper deciduous incisors were detected. Results: According to radiographic analysis of the records, 62.5% showed diffuse calcification, 36.3% tube-like calcification, and 1.2% concentric calcification. According to the extension of pulp calcification, the records showed: 80% partial calcification, 17.2% total coronal calcification and partial radicular calcification, and 2.8 % total coronal and radicular calcification. As for location, only 2.4% were on the coronal pulp, 5.2% on the radicular pulp and 92.4% on both radicular and coronal pulp. Regarding coronal discoloration, 54% were yellow and 2% gray. In relation to periradicular changes, 10% showed widened periodontal ligament space, 3.1% internal resorption, 10% external resorption, 10.4% periapical bone rarefaction. Conclusions: Since PC is a general term, it is important to classify it and correlate it to clinical and radiographic changes, in order to establish the correct diagnosis, treatment and prognosis of each case.
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SUNDARA, MEGHA, LINDA POLKA, and SHARI BAUM. "Production of coronal stops by simultaneous bilingual adults." Bilingualism: Language and Cognition 9, no. 1 (February 27, 2006): 97–114. http://dx.doi.org/10.1017/s1366728905002403.
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This study investigated acoustic-phonetics of coronal stop production by adult simultaneous bilingual and monolingual speakers of Canadian English (CE) and Canadian French (CF). Differences in the phonetics of CF and CE include voicing and place of articulation distinctions. CE has a two-way voicing distinction (in syllable initial position) contrasting short-and long-lag VOT; coronal stops in CE are described as alveolar. CF also has a two-way voicing distinction, but contrasting lead and short-lag VOT; coronal stops in CF are described as dental. Acoustic analyses of stop consonants for both VOT and dental/alveolar place of articulation are reported. Results indicate that simultaneous bilingual as well as monolingual adults produce language-specific differences, albeit not in the same way, across CF and CE for voicing and place. Similarities and differences between simultaneous bilingual and monolingual adults are discussed to address phonological organization in simultaneous bilingual adults.
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Phelan, J. A., R. Mulligan, E. Nelson, J. Brunelle, M. E. A. F. Alves, M. Navazesh, and D. Greenspan. "Dental Caries in HIV-seropositive Women." Journal of Dental Research 83, no. 11 (November 2004): 869–73. http://dx.doi.org/10.1177/154405910408301109.
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Reports that compare dental caries indices in HIV-seropositive (HIV+) subjects with HIV-seronegative (HIV-) subjects are rare. The objective of this study was to determine if there was an association between HIV infection and dental caries among women enrolled in the Women’s Interagency HIV Study. Subjects included 538 HIV+ and 141 HIV- women at baseline and 242 HIV+ and 66 HIV- women at year 5. Caries indices included DMFS and DFS (coronal caries) and DFSrc (root caries). Cross-sectional analysis of coronal caries data revealed a 1.2-fold-higher caries prevalence among HIV+ women compared with HIV- women. Longitudinally, DMFS increased with increasing age and lower average stimulated salivary volume. Root caries results were not significant except for an overall increased DFSrc associated with smoking. Anti-retroviral therapy was not identified as a risk factor for dental caries.
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Mahdi, Syed Sarosh, Zohaib Ahmed, Raheel Allana, Alessandro Peretti, Francesco Amenta, Mohammed Nadeem Bijle, Liang Lin Seow, and Umer Daood. "Pivoting Dental Practice Management during the COVID-19 Pandemic—A Systematic Review." Medicina 56, no. 12 (November 25, 2020): 644. http://dx.doi.org/10.3390/medicina56120644.
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Background and Objectives: The aims of this systematic review were to identify additional infection control measures implemented in dental practice globally to prevent cross-infection and evaluate the psychological impacts of the pandemic among dental professionals. Materials and Methods: A sequential systematic literature search was conducted from December 2019 to 30 April 2020 through PubMed, CINAHL, Scopus, Google Scholar, Embase, and Web of Science databases. The search yielded the following results: “COVID-19” (n = 12,137), “Novel corona virus” (n = 63), “COVID-19 and dentistry” (n = 46), “COVID-19 and oral health” (n = 41), “Novel Corona virus and Dentistry” (n = 0), “dental health and Novel Coronavirus” (n = 26), and “dental practice and Novel Coronavirus” (n = 6). Results: After a careful review and eliminating articles based on inclusion and exclusion criteria, the final review included 13 articles. Management of infection control is discussed extensively in the literature and remains the main theme of many Coronavirus Disease 2019 (COVID-19) articles on dentistry. Telephone triage using a questionnaire, hand hygiene, personal protective equipment (PPE) for clinical and nonclinical staff, a preprocedural mouth rinse, and aerosol management have been discussed and implemented in few countries. Three studies recommended that elective treatments for patients with a temperature of >100.4 F or 38 °C should be postponed or performed in an airborne infection isolation room (AIIR) or negative-pressure room. Limiting the number of patients in the waiting area, the removal of shared objects, proper ventilation, and physical distancing were highly recommended. Psychological distress among dental professionals in relation to existing medical conditions and self-efficacy has been discussed. Conclusions: Although the COVID-19 pandemic has had a substantial impact on the dental profession worldwide, our review highlights many practice management approaches to adopt the new norm. More research highlighting evidence-based safety practices and multisectoral collaboration is required to help dental professionals make informed decisions and make the profession safe, both for the patient and dental professionals.
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Ochoa-Vázquez, Boris Lenin, Sara Ivanna Cedillo-Orellana, Rommel Patricio Guachizaca-Uyaguari, and Diana Karolina Gallegos-Torres. "Mimetización de corona cerámica libre de metal de un incisivo central superior. Reporte de caso." Odontología Sanmarquina 24, no. 3 (July 1, 2021): 291–98. http://dx.doi.org/10.15381/os.v24i3.20185.
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Actualmente, la estética dental presenta un papel relevante dentro de las relaciones interpersonales y la autoestima de los pacientes, es por eso que la demanda de tratamientos estéticos y conservadores son cada vez más frecuentes en la consulta dental, esta demanda compromete a los profesionales a una mayor preparación para identificar los procedimientos más adecuados a ejecutarse. Para el odontólogo es un reto conseguir una completa armonización e integración de los tratamientos efectuados en el sector anterior y más aún cuando se requiere reemplazar un único elemento dentario. El presente reporte de caso tiene por objetivo describir un caso de rehabilitación de alta complejidad de un incisivo central superior fracturado, cuyas características de color y forma fueron recreadas a través de un correcto intercambio de información entre el odontólogo y el técnico dental, obteniendo una corona de disilicato de litio con una excelente mimetización.
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Jayasinghe, Ruwan Duminda, Rasika Jayasinghe, Kalani Hettiarrachchi Lakshman, and Perera Samaranayake. "Sri Lankan dental professionals’ knowledge of the Corona Virus Disease-19 (COVID-19): a questionnaire survey." STOMATOLOGY EDU JOURNAL 8, no. 1 (2021): 7–17. http://dx.doi.org/10.25241/stomaeduj.2021.8(1).art.1.
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Background Dental practitioners are some of the most vulnerable professionals exposed to the risk of contracting the Corona Virus Disease-19 (COVID-19), by virtue of the aerosol generating procedures (AGPs). Hence, an evidence based and detailed knowledge of the disease is important in order to mitigate the effects of the COVID-19 transmission. Aim To identify the perspective, knowledge, and attitudes of Sri Lankan dental surgeons on the COVID-19 pandemic. Methods An online web-based, self-administered questionnaire survey (Google) was conducted among Sri Lankan dental surgeons. All questions, in the pre-tested questionnaire were close-ended, and formulated to elicit data on the views, knowledge, attitudes, and infection control practices related to the COVID-19 pandemic. Results One quarter of the cohort responded and the majority (44.7%) were 30-40 years old with a marginal female preponderance (52.3%). In general, females were significantly more knowledgeable than males on COVID-19, and the post-pandemic preparedness for dental practice (p<0.05). One sixth (18.2 %) incorrectly surmised that, i) pet animals were a source of infection, ii) COVID-19 is not transmitted via surface contact and iii) hand hygiene is not important in preventing infection transmission. All respondents correctly identified AGPs as a high-risk procedure for infection transmission, but approximately two thirds failed to identify specific AGPs in dentistry. Conclusion Taken together, the knowledge, attitudes and practices of Sri Lankan dental surgeons on the COVID-19 pandemic appear satisfactory, but there are knowledge gaps that need to be fulfilled through further continuous education courses.
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Guler, Berceste, Ahu Uraz, Hasan Hatipoğlu, and Mehmet Yalım. "Chemical Evaluation of Energy Dispersive X-ray Spectroscopy Analysis of Different Failing Dental Implant Surfaces: A Comparative Clinical Trial." Materials 14, no. 4 (February 19, 2021): 986. http://dx.doi.org/10.3390/ma14040986.
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The aim of the present study is to compare two different implant surface chemistries of failing dental implants. Sixteen patients (mean age: 52 ± 8.27 with eight females and eight males) and 34 implants were included in the study. Group-I implants consisted of a blasted/etched surface with a final process surface, while Group-II implants consisted of the sandblasted acid etching (SLA) method. The chemical surface analysis was performed by the energy dispersive X-ray spectroscopy (EDX) method from coronal, middle, and apical parts of each implant. Titanium (Ti) element values were found to be 20.22 ± 15.7 at.% in Group I and 33.96 ± 13.62 at.% in Group-II in the middle of the dental implants. Aluminum (Al) element values were found to be 0.01 ± 0.002 in Group-I and 0.17 ± 0.28 at.% in Group II in the middle of the dental implants, and statistically significant differences were found between the groups for the Al and Ti elements in the middle of the dental implants (p < 0.05). There was a statistically significant difference for the Ti, Al, O, Ca, Fe, P, and Mg elements in the coronal, middle, and apical parts of the implants in the intragroup evaluation (p < 0.05). It is reported that different parts of the implants affected by peri-implant inflammation show different surface chemistries, from coronal to apical, but there is no difference in the implants with different surfaces.
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Vishwanath, B., Umrana Faizudin, M. Jayadev, and Sushma Shravani. "Reattachment of Coronal Tooth Fragment: Regaining Back to Normal." Case Reports in Dentistry 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/286186.
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Dental trauma is such a situation wherein the patient is affected both socially and psychologically. During their first dental visit, these patients with trauma are in pain and need emergency treatment. Such patients are quite apprehensive because of impaired functions, esthetics, and phonetics. The prime objective while handling such cases is successful pain management with immediate restoration of function, esthetics, and phonetics. The advances in adhesive dentistry have allowed dentists to use the patient’s own fragment to restore the fractured tooth. Reattachment is such an ultraconservative technique which provides safe, fast, and esthetically pleasing results. This paper discusses fragment reattachment technique and presents a clinical case of complicated crown fracture.
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Gambarini, Gianluca, Lucila Piasecki, Gabriele Miccoli, Gianfranco Gaimari, Dario Di Nardo, and Luca Testarelli. "Cone-beam computed tomography in the assessment of periapical lesions in endodontically treated teeth." European Journal of Dentistry 12, no. 01 (January 2018): 136–43. http://dx.doi.org/10.4103/ejd.ejd_320_17.
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ABSTRACTObjective: This study aimed to evaluate the relationship between the quality of the coronal restoration and the root canal filling on the periapical status of endodontically treated teeth using CBCT. Materials and Methods: CBCT data were obtained from the records of patients who deny any dental treatment in the 2 years prior to the CBCT examination. CBCT images (90 kVp and 7 mA, exposure time of 23 s, and a voxel size of 0.2 mm, with a field of view of 13 cm x 13 cm) of 1011 endodontically treated teeth were observed. A score was given to the quality of the root filling and the quality of the coronal restoration. Statistical Analysis Used: Data were statistically analyzed to correlate the periapical status with gender, dental group. and quality of endodontic treatment and restoration (Chi-square test with a significance level of P < 0.001). Results: Absence of periapical periodontitis was found in 54.9% of the cases. The periapical outcome was not related to gender or dental group (P > 0.05). A statistically significant factor (Chi-square test, P < 0.0001) resulted when different qualities of sealing were compared. Conclusions: CBCT showed that high-quality root canal treatments followed by an adequate coronal sealing restoration avoid the presence of periapical periodontitis in time.
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Vélez Toala, Roysi, Carlos Valdivia Silva, Amanda Hilda Koctong Choy, Berty Chávez Zanga, and Juan Carlos Aycachi Romero. "PREVALENCIA DE CARIES Y NECESIDAD DE TRATAMIENTO EN ESCOLARES DE 12 AÑOS EN LA PROVINCIA DE TACNA 2016." Revista Médica Basadrina 12, no. 1 (May 9, 2019): 42–45. http://dx.doi.org/10.33326/26176068.2018.1.632.
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INTRODUCCIÓN: La caries dental es una enfermedad de mayor prevalencia a pesar de las diferentes acciones que realiza el Ministerio de Salud, construyendo un gran problema de la salud pública. El objetivo fue determinar la prevalencia de caries dental y la necesidad de tratamiento en escolares de 12 años de edad. MATERIAL Y MÉTODOS: Estudio de campo, tipo descriptivo-transversal, se utilizó el Índice CPOD - 12 y necesidad de tratamiento propuestos por la OMS. La población estudiada fueron todos los escolares de 12 años de edad que estudian en las instituciones educativas de toda la provincia de Tacna, con una muestra estraficada aleatoria de 981 escolares. Según la OMS, CPOD 12, es la edad recomendada para estos estudios ya que es la más afectada por la enfermedad (caries dental). RESULTADOS: Se encontró que la prevalencia de caries mediante el Índice de CPOD para los escolares de 12 años de la provincia de Tacna fue de 3,85, considerado rango moderado según la cuantificación de la OMS. El promedio de piezas dentales según tratamiento requerido para toda la población fue el 46,3% de piezas dentarias que no requieren tratamiento alguno, la pieza dentaria con necesidad de tratamiento de sellantes fue de 41,96 %; obturación en una superficie con un 9,62%; obturación de dos superficies con 1,69%; coronas 0,07%, tratamiento pulpar 0,23% y exodoncias 0,13%. CONCLUSIÓN: Los niños de 12 años de Tacna tienen una prevalencia de caries en un rango moderado. Se ene la necesidad de realizar tratamientos preventivos promocionales para disminuir el Índice de COPD y realizar tratamientos en el nivel primario.
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Nanda, Kanwar Deep Singh, and Jasmine Nanda. "Recommendations and Management in Dental Practice during Corona Virus COVID-19." Open Dentistry Journal 14, no. 1 (May 16, 2020): 191–93. http://dx.doi.org/10.2174/1874210602014010191.
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NEDELEA, Raluca Ioana, Adrian TOMA, and Andreea MARINCUS. "The Conservative Approach to Dental Crown Fractures in Dogs and Cats." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Veterinary Medicine 76, no. 2 (November 25, 2019): 201. http://dx.doi.org/10.15835/buasvmcn-vm:2019.0023.
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Dental crown fractures in small animal pathology are common dental issues in every day practice. The most frequently performed procedure is extraction with all the negative consequences.The conservative approach to dental crown fractures involves endodontic treatment and coronal reconstruction in order to keep the fractured teeth on the dental arch.They were taken into study 74 dental crown fractures involving the pulp chamber, leaving the root undamaged.Clinical and radiological one-year check-up revealed us that the conservative approach to dental crown fractures in dogs and cats, when the selection criteria correspond to the indications of the specialized literature and when it is performed by latest protocols, is a reliable alternative to veterinary dental extractions.
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Riaz, Sidrah, Sabrina Tariq, Umair Tariq Mirza, Muhammad Tariq Khan, Shabana Chaudhary, and Muhammad Arshad. "The feelings & perceptions of a Medical doctor after recovery from Corona infection." Pakistan Journal of Medical and Health Sciences 15, no. 5 (May 30, 2021): 939–42. http://dx.doi.org/10.53350/pjmhs21155939.
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Aim: To know the core feelings and perception of a medical doctor after recovery from corona infection Study Design: A descriptive cross-sectional qualitative survey Place and duration of study: Akhter Saeed medical and dental college Lahore. Duration of study was two months from 1stJanuary 2021 to 31st March 2021. Methods: A survey questionnaire is formed and sent to different doctors of different specialties both in the public and private sectors. Non-probability conventional sampling technique was used. Qualitative data was analyzed by the SPSS 20. Results: The online survey was sent to three hundred and fifty (350) doctors who were fellows, consultants, assistant consultants and professors. The voluntary response is submitted by 26doctors who suffered and recovered from corona infection. Conclusion: Coronapandemic has physical, psychological, social and economic effects. Everyone who suffered from it has his own insight about disease but unlike other infections, anxiety and uncertainty about future were major psychological effects which added to physical suffering of patients. All recovered patients strongly recommended following of SOPs. Vaccinationwith following SOPs is unanimously only optimistic approachagainst corona to decrease incidence and severity of infection. There is a need for doctor counselling sessions to cope with stress and anxiety issues. Keywords: Corona infection, anxiety, consultant.
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Valdivieso Vargas-Machuca, Mónica, Lais Estefani Ccorimanya-Fernández, Susana Elizabeth Nieto-Quispe, Evelyn Marilyn Alfaro-Canevaro, and Yamille Yovanna Ceccaño-Quintana. "Manejo integral del paciente con amelogénesis imperfecta." REVISTA ODONTOLOGÍA PEDIÁTRICA 18, no. 1 (September 15, 2019): 25–31. http://dx.doi.org/10.33738/spo.v18i1.282.
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La Amelogénesis imperfecta (AI) es una alteración hereditaria que afecta el esmalte y, se caracteriza por hipomineralización o hipoplasia con decoloración, sensibilidad y fragilidad de los dientes. Se reporta el caso de un paciente de sexo femenino, de 5 años, no receptivo, es referido por emergencia a la Clínica Dental Cayetano Heredia debido a dolor intenso. Durante la anamnesis, el padre de familia refiere que tanto él, como el segundo hijo, poseen la misma alteración dentaria que su menor hija.
Evaluación clínica radiográfica: el paciente presenta: lesiones cavitadas múltiples, necrosis pulpar, hipoplasia del esmalte. El diagnóstico presuntivo del defecto del esmalte: Amelogénesis Imperfecta. Se indica al padre de familia las alternativas de tratamiento, y este opta por un tratamiento integral bajo anestesia general. Habiendo extraído la pieza 7.5, como parte del tratamiento, ésta se lleva al servicio de patología para su análisis.
Diagnóstico final: Amelogénesis Imperfecta tipo hipoplásico. Tratamiento: consiste en: profilaxis y aplicación de flúor barniz c/2 meses, pulpectomía, cementación de coronas de acero preformadas y restauraciones con resina.
Discusión: Es importante averiguar si los miembros de la familia muestran alteraciones dentales (malformación hereditaria). Cuando se confirma el diagnóstico de AI, se debe considerar un tratamiento integral temprano. El tiempo de vida disminuida de las restauraciones directas en pacientes con AI, sugiere un mantenimiento constante de las restauraciones hasta que puedan realizarse restauraciones protésicas definitivas. En el caso de grandes destrucciones de dientes primarios, están indicadas coronas de acero inoxidable.
Conclusiones: La AI es un trastorno hereditario que se debe diagnosticar en una etapa temprana y llevar un tratamiento integral con controles periódicos frecuentes. La utilización de coronas de acero preformadas para dientes posteriores y resinas para dientes anteriores podrían ser las mejores alternativas en pacientes que sufren AI.
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Ruiz Bustos, A. "La morfología de la línea de esmalte en los molares de los roedores muroideos es explicada mediante una red hexagonal." Estudios Geológicos 67, no. 2 (December 30, 2011): 505. http://dx.doi.org/10.3989/egeol.40458.146.
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La línea de esmalte observada en la corona de los roedores muroideos tiene formas geométricas que coinciden exactamente con una red plana triangular equilateral. Esta conclusión ayuda a explicar el modelo dental de los muroideos con una nueva perspectiva denominada odontohexasimetria, fundamentada en las formas hexagonales observadas en la línea de esmalte.
La morfología de la corona del diente de los mamíferos es heredada de padres a hijos. Esto infiere la existencia en cada espécimen de un autocontrol inteligente codificado en el genoma, que coordina la morfología de los dientes durante el desarrollo embriológico y su oclusión.
La hipótesis del desarrollo el bucle de las áreas de mitosis (Ruiz Bustos, 2004a, 2005, 2006 y 2007) propone, que en los momentos iniciales de la morfogénesis, es observada una masa de células en mitosis (área de mitosis de basal). Esta es repetida en un bucle, hasta constituir todas las restantes áreas de mitosis del diente. Al final de la morfogénesis, el proceso de biomineralización transforma las áreas de mitosis en los tubérculos de la corona del diente.
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Dixit, P. B., S. Dixit, S. Dahal, P. Poudel, D. Roy, and N. Manandhar. "Pattern of Dental Problems among Patients Visiting a Dental Hospital during COVID-19 Pandemic." Kathmandu University Medical Journal 18, no. 2 (November 19, 2020): 58–61. http://dx.doi.org/10.3126/kumj.v18i2.32958.
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Background Coronavirus disease 2019 (COVID-19) is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and Nepal is a part of this worldwide corona virus disease. In this critical situation, the patients have a sense of insecurity visiting dental hospital.
Objective To assess the pattern of dental problems in patients visiting a dental college during COVID-19.
Method A descriptive cross-sectional study was conducted in Dental Hospital of Kathmandu Medical College and Teaching Hospital from May to August 2020. The patients visiting the Dental hospital were assessed for dental problems. Data were analyzed in Statistical Package of Social Sciences version 20. Frequency and percentage for pattern of dental problems were calculated.
Result Most of the patients of age group of 14 to 31 years 530 (36.53%) had dental problems during the survey period. Out of total patients having dental emergency, 739 (50.93%) were males and 712 (49.07%) were females. Majority 545 (37.56%) visited the dental hospital for endodontic consultation followed by emergency consultation for oral surgical procedures 298 (20.54%). Least consulted dental emergency condition was prosthodontic consultation 18 (1.24%).
Conclusion The study findings showed that the major dental problems in patients causing emergency visit to dental hospital during COVID-19 pandemic period were dental pain and swelling requiring endodontic consultation and the least need felt is prosthodontic consultation.
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Hajaj, Tareq, Antonis Perdiou, Cosmin Sinescu, Mihai Rominu, Meda Lavinia Negrutiu, Roxana Talpos, Adrian Neagu, and Serban Talpos. "Evaluation of Different Coronal Sealing Materials in the Endodontically Treated Teeth: An In Vitro Study." Advances in Materials Science and Engineering 2021 (April 20, 2021): 1–6. http://dx.doi.org/10.1155/2021/9977951.
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In vitro studies have shown that rapid penetration of bacteria in the entire root canal system may occur after endodontic treatment without a coronal seal. A proper restorative technique is necessary to ensure a coronal seal and protection of the residual dental structure. The aim of this in vitro study was to evaluate the coronal sealing ability of the most relevant clinical materials by means of dye penetration (neutral red dye, Sigma-Aldrich, Germany), through a light spectrometric device, and to establish which one of the tested dental materials possesses the best sealing ability. Forty-two extracted teeth were prepared and used for this experiment; they were sealed with 5 different cements. The flow composite had the best absorbance value with 0.00675 ± 0.00096 (mean ± standard deviation) for monoradicular samples and 0.025 ± 0.00129 for pluriradicular samples. Under the constraints of the present study, both flowable and packable composite materials can be recommended as orifice sealing materials to prevent microleakage in an endodontically treated tooth. To assess the clinical superiority of any material, further in vivo studies are required.
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Tariquzzaman, Md, Golam Mohiuddin Chowdhury, and Md Liakat Ali Hyder. "Assessment of Complications Associated with Tooth Supported Fixed Dental Prosthesis amongst Armed Forces Personnel." Journal of Armed Forces Medical College, Bangladesh 13, no. 1 (April 21, 2017): 75–80. http://dx.doi.org/10.3329/jafmc.v13i1.41029.
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Introduction: Fixed dental prosthesis is becoming more popular for preservation of badly damaged crowns and endodontically treated teeth and also for replacing lost teeth around the world. Complications of fixed dental prosthesis are also becoming very common. Fixed dental prosthesis assures greater retention and stability in addition to comfort. Fixed dental prosthesis is more acceptable to patients when correctly planned and designed which provide predictable function are also enhances the esthetics and psychological well being of the patients.
Objective: To assess the complications associated with tooth supported fixed dental prosthesis amongst armed forces personnel reporting to Combined Military Hospital (CMH) Cumilla and Combined Military Hospital (CMH) Dhaka.
Materials and Methods: An interview based questionnaire was used for 220 patients followed by clinical oral examination of every individual in this cross sectional study conducted during September 2016 to August 2017 in Combined Military Hospital, Dhaka. Patients soft tissues were checked but the main emphasis was given on recording the information regarding the type of prosthesis being used, material of the prosthesis, location of the prosthesis and the complication present including dental caries, coronal or radicular abutment fracture, root canal treatment failure, periapical lesions, periodontal problems and mechanical failures including occlusal interference, no occlusal contact, decementation of the prosthesis, esthetic problems, porcelain and metal fractures. Periapical radiograph was made to assess mentioned complaints; more so periodontal probing was applied to measure the gingival attachment loss.
Results: Approximately 183(83%) patients were using porcelain fused to metal prosthesis with 133(60%) of prosthesis being used in posterior segments of mouth. Complications like dental caries, coronal abutment fracture, radicular abutment fracture, occlusal interferences, root canal failures and decementations were more significantly associated with crowns than bridges (p=0.001). On the other hand esthetic issues, periapical lesions, periodontal problems, porcelain fractures and metal damage were more commonly associated with bridges (p=0.001). All cases of dental caries reported were associated with acrylic crown and bridges, whereas all coronal abutment fractures were associated with metal prosthesis. A significantly higher number of patients who got their fixed dental prosthesis from other sources i.e. paramedics, technicians, dental assistants or unqualified dentists had periapical lesions, decementations, esthetic issues and periodontal diseases.
Conclusion: Complications associated with fixed dental prosthesis like root canal failures, decementations, periapical lesions and periodontal disease were more significantly associated with prosthesis fabricated by other sources rather than those acquired from CMHs and private dental care and also in patients using prosthesis for 5 to 10 years.
Journal of Armed Forces Medical College Bangladesh Vol.13(1) 2017: 75-80
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Bouzouina, Kheira, Sadek Gouasmi, Djebbar Noureddine, and Chelahi Chiker Yamina. "Numerical Analysis of the Biomechanical Behavior for both Kinds of Dental Structures." Journal of Biomimetics, Biomaterials and Biomedical Engineering 40 (February 2019): 26–40. http://dx.doi.org/10.4028/www.scientific.net/jbbbe.40.26.
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The aim of the present study is to investigate the comparison between the biomechanical behavior of the dental prosthesis composed of three implants replacing successively the premolar and two molars and the dental bridge located between two implants. Both dental structures were subjected to the same masticatory loading (Corono-apical, Linguo-buccal and Disto- mesial). Three-dimensional finite element models of dental structures were developed to determine the stress distribution under simulated applied loads. In this study the biomechanical behavior of prosthetics dental crowns subjected to static loads in contact with the jawbone has been highlighted. Biomechanical simulations indicated that the equivalent stresses in the dental bridge are greater than that produced in the dental prosthesis. The dental bridge can be assimilated to a beam at the embedded ends, subjected to the bending.