Relevant bibliographies by topics / Teeth Teeth Dental Pins

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Academic literature on the topic 'Teeth Teeth Dental Pins'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Teeth Teeth Dental Pins"

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Boteva, E., K. Peycheva, D. Karayasheva, D. Pashkouleva, and M. Marinova. "A Study on Fracture Resistance of Class IV Cavities Treated with Pins." Acta Medica Bulgarica 41, no. 2 (2014): 43–48. http://dx.doi.org/10.1515/amb-2014-0020.

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Summary Тhе use of pins in restoration of large cavities with esthetic resin materials appear in the dental literature after 1970 and there are less than 20 publications, focused around restorations of class IV cavities. The aim of the present study is to test the role of pins in the fracture resistance in class IV restorations with resin materials. Materials and methods: 68 matured human upper and lower sound front teeth are included in the study. The groups are upper incisors, lower incisors, canines with or without pins. All cavities are filled with the same resin material, technology and Prime bond NT. Termocycling: 30 days in 30ºС, 100% humidity, 60 days in 100% humidity 2Х12 hours at 35ºС and 40ºС and 100 dry cycles, 20 seconds each in the following order - 45ºС ± 3ºС, room temperature, 5ºС, room temperature, two series, 50 each with two days between in Cultura incubator of Viva Dent 55ºС and ice. Machine for vertical load testing ZD 10/90, load in Newtons (N), from 20 N to 1275 N, speed 0.5 mm/ min, displacement from 0.1 to 1.2 mm. Type of fractures observed: adhesive, cohesive in dentine and in resin material, mixed. Results: The highest proportion of fractures observed was in front teeth with large cavities and with pins, low loading (493-503N). Front teeth with large cavities without pins have better resistance and lower proportion of fractures (488-526N). Canines are more resistible with pins and less without. Lowest resistance is found in lower front teeth when pins are present. Conclusion: In class IV restorations when tissue loses are less than 2/3 of the incisal ridge pins can decrease the fracture resistance of the teeth.
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Saravanan, Soundaria, Chalakuzhiyil Abraham Mathew, and Biju K.A. "NEUTRAL ZONE RECORDING USING DIE PINS AND TISSUE CONDITIONER: A CASE REPORT." International Journal of Advanced Research 9, no. 03 (2021): 455–62. http://dx.doi.org/10.21474/ijar01/12604.

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The primary goal of providing complete denture prosthesis is to restore function and esthetics. Arbitrary placement of teeth may cause dislodgment during function. Neutral zone is a concept which emphasize on placing the teeth in a zone where the forces between the tongue and cheeks or lips are equal. In this case report a novel dental technique is to be discussed which uses, used die pins to retain the tissue conditioning material to record the neutral zone.
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Smith, Margaret A., Sangeeta Rao, and Jennifer E. Rawlinson. "Dental Pathology of the Domestic Pig (Sus Scrofa Domesticus)." Journal of Veterinary Dentistry 37, no. 4 (2020): 192–200. http://dx.doi.org/10.1177/0898756421989097.

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Antemortem domestic pig (Sus scrofa domesticus) dental pathology literature is sparse. This observational descriptive study evaluated 23 client-owned pigs that while sedated/anesthetized for routine annual care had intraoral dental radiographs and an oral examination performed. Age, gender, weight, and breed for each pig were recorded. Oral examination and radiographic findings were reviewed to create a comprehensive list of dental abnormalities identified. Descriptive statistics were performed to summarize the data. The study population included 14 castrated males and 20 Vietnamese pot-bellied mini-pigs. The median age was 3 years (range 2-12 years), and the median weight was 39 kg (range 11-140 kg). The most common finding was missing teeth (21/23 pigs); the first premolar tooth was the most likely to be absent (64/106 missing teeth). Periodontal disease was common (20/23 pigs). Advanced stages primarily affected the first molar teeth frequently in the form of a mucogingival defect. Supernumerary roots were discovered on the maxillary canine teeth in female pigs only (10/25 teeth with supernumerary roots). The most common persistent deciduous tooth was the maxillary second incisor (15/19 persistent deciduous teeth). Non-age or gender related open apices were most likely associated with mandibular first and second incisor teeth (26/96 teeth with open apices). Tooth resorption was also identified (7/23 pigs). The study findings prove that pet pigs commonly have dental pathology; therefore, thorough oral examinations with intraoral radiographs should be included in porcine routine health care regimens.
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Oliveira, Simone Helena Gonçalves, Lilian Costa Anami, Tânia Mara Silva, Rodrigo Simões Oliveira, Ana Luisa Leme Simões Sales, and Alberto Alvarenga Oliveira. "Intracanal reinforcement in anterior teeth to prevent fractures." Brazilian Dental Science 17, no. 3 (2014): 98. http://dx.doi.org/10.14295/bds.2014.v17i3.973.

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<p>The fracture of anterior teeth after root canal treatment is a real and multifactorial possibility. This is due to the weakening of the root due to lost of the remaining tooth added to oblique-existing occlusal forces. This fracture in addition to causing a masticatory dysfunction, will also influence the aesthetics of the patient. In prevention, one of the treatments used and widely accepted, is the use of intraradicular. These can be made of metal, carbon fiber, fiberglass and ceramics. The pins of metal and carbon fiber are very efficient but don't favor the aesthetic, as the pins fiberglass and ceramics are very resistant and favor aesthetics. Reinforcing with these biomaterials is beneficial and leads to a favorable prognosis. This study shows a case which the building could have prevented the intracanal fracture of an devitalized upper anterior tooth and makes a brief discussion about the available options for this type of rehabilitation. The use of reinforced glass fiber as reinforcement of the structure of devitalized teeth is indicated for the prevention of dental fractures. Cast ceramic cores are indicated for the insufficient coronary remaining to support the filling material.<strong></strong></p>
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Nikolaychuk, Evgeny A., Andrei K. Iordanishvili, and Evgeny Kh Barinov. "Case of dental restoration by materials not permitted for use in medical practice." Russian Journal of Forensic Medicine 7, no. 1 (2021): 48–50. http://dx.doi.org/10.17816/fm338.

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Introduction: In recent years, endodontic dental treatment associated with periodontal inflammation in the provision of emergency and planned dental care is not provided with the appropriate standard and quality. Clinical case: Clinical observation is done to a patient suffering from exacerbation of chronic periodontitis, who underwent restoration of 2.6 teeth with light-cured filling material 15 years ago, and intraroot pins of which are made of materials that are not approved for medical practice use. Conclusion: The use of inappropriate material in medical practice for tooth restoration gives the patient the right to seek for material and moral compensation for bodily harm.
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Aborisade, A., J. Abdurrazaq, and J. Adeoye. "Concurrent presentation of dental lamina cysts of the new born and natal tooth in a child: a case report and literature review." African Journal of Oral Health 9, no. 1 (2019): 1–4. http://dx.doi.org/10.4314/ajoh.v9i1.1.

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Dental lamina cysts and natal/neonatal teeth are rare findings in a neonate with the dental lamina cysts presenting as white or pink small nodules, often multiple, approximately 1 to 3mm in diameter. They are usually located on the alveolar mucosa of both maxilla and mandible and also on the midpalatine raphe; the whitish colored lamina cysts found on the alveolar mucosa can be confused clinically with neonatal teeth. Neonatal teeth are teeth found in infants within the first 30 days of life, and they present a social stigma to the parent. They have been reported to be a component of the full complement of teeth in 90-95% of cases. Apart from the social stigmata, they can also induce trauma to surrounding soft tissues and / or to the mother’s breast (Riga-Fede phenomenon). While the dental lamina cysts usually resolve spontaneously within few weeks to months, there are indications that might preclude extraction of a natal/neonatal tooth.Keywords: Dental lamina cyst, Epstein’s pearls, Mucosal cyst, natal/neonatal tooth
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Bajić, Marijana Popović, Violeta Petrović, Vanja Opačić Galić, et al. "Direct pulp capping with novel nanostructural materials based on calcium silicate systems and hydroxyapatite." Stomatoloski glasnik Srbije 63, no. 4 (2016): 183–92. http://dx.doi.org/10.1515/sdj-2016-0019.

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Summary Introduction Direct pulp capping is an important therapeutic method that has goal to provide formation of dentin bridge and healing process of the pulp. The aim of this study was to investigate the effects of new nanostructural materials based on calcium silicate systems and hydroxyapatite on exposed dental pulp in Vietnamese pigs. Material and Methods The study was conducted on 30 teeth of two Vietnamese pigs (Sus scrofa verus). On buccal surfaces of incisors, canines and first premolars, class V cavities were prepared with a small round bur and pulp horn was exposed. In the first experimental group (10 teeth) the perforation was covered with new nanostructural material based on calcium silicate systems (CS). In the second experimental group, the perforation was covered with compound of calcium silicate systems and hydroxyapatite (HA-CS) (10 teeth). In the control group, exposed pulp was covered with Pro Root MTA® (Dentsply Tulsa Dental, Johnson City, TN, USA) (10 teeth). All cavities were restored with glass ionomer cement (GC Fuji VIII, GC Corporation, Tokyo, Japan). Observation period was 28 days. After sacrificing the animals, histological preparations were done to analyze the presence of dentin bridge, inflammatory reaction of the pulp, pulp tissue reorganization and the presence of bacteria. Results Dentin bridge was observed in all teeth (experimental and control groups). Inflammation of the pulp was mild to moderate in all groups. Neoangiogenesis and many odontoblast like cells responsible for dentin bridge formation were detected. Necrosis was not observed in any case, neither the presence of Gram-positive bacteria in the pulp. Conclusion Histological analysis indicated favorable therapeutic effects of new nanostructural materials based on calcium silicate systems and hydroxyapatite for direct pulp capping in teeth of Vietnamese pigs.
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Kuo, Tzong-Fu, Shi-Yuan Sheu, Ching-Chuan Jiang, et al. "TOOTH REGENERATION WITH DENTAL STEM CELL RESEARCH IN MINIATURE PIG MODEL." Taiwan Veterinary Journal 41, no. 03 (2015): 197–203. http://dx.doi.org/10.1142/s1682648515500109.

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To develop a cell-based approach to tooth regeneration, we isolated dental stem cells from tooth buds of mini pigs and culture-expanded them for about three weeks. Flow cytometry revealed that the majority of the proliferating cells were positive for stem cell surface markers, including CD105, CD29, CD44, CD71. These dental stem cells were then seeded in biodegradable agarose gel for autograft in various areas of the jaw bone. Mini pigs with tooth buds removed without transplantation of dental stem cells served as control. After one year, well differentiated tooth crown and root sheath were formed in mini pigs in the experimental group. The tooth formed by dental stem cells transplanted in alveolar bone was similar in size to original tooth crown (approximately 2 cm × 2 cm × 2 cm). The teeth formed by dental stem cells transplanted under the roots of the anterior teeth and in the cortical bone area were smaller. In the control group, the space where the tooth bud was extracted without cell transplantation was seen to be closed by forward movement of the posterior teeth. Histological analysis showed the structures of enamel, dentin and pulp in the regenerated tooth crown. Immunohistochemical analysis of amelogenin, type I collagen and bone sialoprotein confirmed enamel and dentin formation. Enamel and dentin structures on the regenerated tooth were also identified using scanning electron microscopy. These findings demonstrate a successful model of tooth regeneration from dental stem cells in mini pigs. In addition, local environment and available space also significantly affect the extent of tissue regeneration. Our study demonstrates the feasibility of using dental stem cells for tooth regeneration in clinical applications.
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Galo, Rodrigo, Marta Maria Martins Giamatei Contente, and Maria Cristina Borsatto. "Wear of two pit and fissure sealants in contact with primary teeth." European Journal of Dentistry 08, no. 02 (2014): 241–48. http://dx.doi.org/10.4103/1305-7456.130619.

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ABSTRACT Objectives: Wear simulations may provide an indication of the clinical performance of pit-and-fissure sealants when associated with primary teeth as counterbody, restricting the involved variables. The aim of this study was to evaluate wear of dental materials used as pit-and-fissure sealants in contact with primary teeth. Materials and Methods: A resinous sealant (Fluroshield®) and a resin-modified glass ionomer cement (Vitremer®) were selected in a post-plate design, using as counterbody primary tooth pins (4 × 4 × 2 mm) at 3 and 10 N vertical load, 1 Hz frequency, 900 wear cycles in artificial saliva (n = 15). Attrition coefficient values were obtained and the material and primary tooth volumes were analyzed. Data were analyzed statistically by ANOVA and Duncan's test (P < 0.05). Results: Fluroshield® presented the highest attrition coefficient values for the 3 N but these values decreased significantly for the 10 N load. The means for volume loss (3 mm) of the different samples after the wear test were not statistically different for the materials. The volume loss values for the primary teeth were statistically different and there was an increase in volume loss with the increase of the load applied in the wear tests. Conclusions: Differences were also observed with regard to the surface deformation characteristics. The wear rates of primary tooth enamel vary according to the type of material and the load applied during mastication.
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Franco, Ademir, Murilo Navarro de Oliveira, Lorenna Keren Gomes-Lima, et al. "Case-specific characteristics of pink teeth in dental autopsies – A systematic review." Journal of Forensic and Legal Medicine 68 (November 2019): 101869. http://dx.doi.org/10.1016/j.jflm.2019.101869.

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Dissertations / Theses on the topic "Teeth Teeth Dental Pins"

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Buchanan, Susan. "Effect Of Chemical Agents On Acid Production In, And The Microbial Content Of, Pits And Fissures." University of Sydney, 1988. http://hdl.handle.net/2123/4967.

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Master of Dental Surgery<br>This work was digitised and made available on open access by the University of Sydney, Faculty of Dentistry and Sydney eScholarship . It may only be used for the purposes of research and study. Where possible, the Faculty will try to notify the author of this work. If you have any inquiries or issues regarding this work being made available please contact the Sydney eScholarship Repository Coordinator - ses@library.usyd.edu.au
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Lee, Kwok-lun. "The oral epidemiology of 45-64 year-old Chinese residents of a housing estate in Hong Kong coronal and root caries /." Click to view the E-thesis via HKUTO, 1988. http://sunzi.lib.hku.hk/HKUTO/record/B38628260.

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Lee, Kwok-lun, and 李國綸. "The oral epidemiology of 45-64 year-old Chinese residents of a housingestate in Hong Kong: coronal and rootcaries." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1988. http://hub.hku.hk/bib/B38628260.

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Clavijo, Victor Grover Rene [UNESP]. "Avaliação da resistência à fratura de raízes fragilizadas reabilitadas por diferentes técnicas de construção de núcleos intra-radiculares." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/89634.

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Made available in DSpace on 2014-06-11T19:24:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-03-05Bitstream added on 2014-06-13T19:10:18Z : No. of bitstreams: 1 clavijo_vgr_me_arafo.pdf: 1143518 bytes, checksum: fc7de1c4fc0422cee9413ae0dcdfbad7 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>A reabilitação de raízes fragilizadas é um procedimento complexo com prognóstico duvidoso. Este estudo, avaliou por meio de compressão, a resistência à fratura e o padrão de fratura de raízes fragilizadas reabilitadas com diferentes técnicas de construção de núcleos intra-radiculares. Quarenta incisivos bovinos hígidos foram divididos em quatro grupos de acordo com a técnica de construção de pinos intra-radiculares: Grupo 1- raízes fragilizadas reabilitadas com núcleo metálico fundido; Grupo 2- raízes fragilizadas reabilitadas com pinos de fibra de vidro e pinos acessórios de fibra de vidro; Grupo 3- raízes fragilizadas reabilitadas com pino anatômico direto (resina composta + pino de fibra de vidro) ; Grupo 4- raízes fragilizadas reabilitadas com pino anatômico indireto de fibra de vidro. Todos os grupos tiveram seus núcleos cimentados com o cimento resinoso Multilink e as porções coronárias padronizadas por uma matriz de resina acrílica. Os corpos de prova forma submetidos à Máquina de Ensaio Universal à uma velocidade de carga de 0,5mm/min até sua fratura numa angulação de 135° em relação ao longo eixo do dente sobre a face palatina. Os valores médios de resistência à fratura foram: Grupo 1- 575,54N; Grupo 2- 400,49N; Grupo 3- 483,39N; Grupo- 4 559,19N. A análise de variância (ANOVA) (p<0,05) a um critério mostrou diferença estatisticamente. O grupo 1 e 4 médias diferentes, porém estatisticamente iguais, mas maiores estaticamente que o grupo 2 e 3. Os percentuais de raízes com prognóstico favorável após a fratura foram: Grupo 1- 0%; Grupo 2- 80%; Grupo 3- 100% ; Grupo 4- 100%. Os pinos anatômicos direto e indireto mostraram ser uma nova opção para reabilitação de raízes fragilizadas.<br>The rehabilitation of weakened roots is a complex procedure with an unpredictable prognosis. This study evaluated by compression to fracture resistance and the fracture pattern of weakened roots restored with different construction techniques of intra-radicular posts. Forty hygid bovine incisors were divided into four groups according to each technique of construction of the intra-radicular posts: Group 1- weakened roots restored with metallic posts,; Group 2- weakened roots restored with glass fiber posts and accessory glass fiber posts; Group 3- weakened roots restored with direct anatomic posts (composite resin + glass fiber post); Group 4- weakened roots restored with indirect anatomic post (glass fiber post). All the groups were cemented with dual resinous cement (Multilink) and the coronal portions were patterned by an acrylic resin matrix. The specimens were submitted to a Universal Testing Machine at 0,5mm/min speed until its fracture at an angulation of 135° in relation to the long axis of the tooth. The mean values of fracture resistance were: Group 1- 575,54N; Group 2- 400,49N; Group 3- 483,39N; Group 4- 559,19N. The ANOVA values were (p<0,05) to one criteria showed statistic difference. Group 1 and the 4 different means were statistically the same, but statistically more than the ones of groups 2 and 3. The percentage of roots with favorable prognosis after fracture were: Group 1- 0%; Group 2- 80%; Group 3- 100%; Group 4- 100%. The direct and indirect anatomic post of glass fiber showed a new option to rehabilitate weakened roots.
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Gavrilko, Oleg. "Estudo post mortem através da técnica do pink teeth em vítimas de mortes violentas em Curitiba e Região Metropolitana." Universidade Tecnológica Federal do Paraná, 2013. http://repositorio.utfpr.edu.br/jspui/handle/1/488.

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Os dentes rosados são um fenômeno que pode ocorrer em vida ou post-mortem. Ele resulta na pigmentação do dente pela hemoglobina que se difunde através dos túbulos destinatários. Vários pesquisadores vêm analisando esse fenômeno a fim de elucidar seu mecanismo e tentar relacioná-lo com a causa da morte e do tempo decorrido da morte, com o objetivo de auxiliar e agilizar o trabalho de investigação criminal na descoberta da real situação da morte. Nesse trabalho o autor procurou correlacionar o aparecimento de dentes rosados com a hora aproximada e a causa da morte, mensurando a coloração. Foi realizado um trabalho de campo no Instituto Médico Legal da cidade de Curitiba onde foram analisados 15 cadáveres, com diferentes causas da morte. Para estabelecer a coloração foi utilizada a escala de cores RGB Hex Triplet Color Chart e realizada a comparação visual dos dentes. Ficou constatado que os dentes da bateria labial, ou seja, de canino a canino, foram os dentes mais afetados e a região cervical dos dentes – colo do dente ou na região da junção cemento-esmalte, ou anda pescoço do dente, é a que apresenta uma coloração mais exuberante. É proposto o desenvolvimento de um colorímetro eletrônico como trabalho futuro, com o objetivo de automatizar a aquisição de cor nos dentes rosados.<br>Pink teeth are a phenomenon that can occur in life or post-mortem. It is resulted by pigmentation tooth by hemoglobin, which diffuses through the dentinal tubules. Several researches have analyzed this phenomenon, in order to elucidate its mechanism and try to relate to the cause of death and the time elapses from death, to assist and make faster the word of criminal investigation in discovering the real situation of death. In this work the author tried to correlate the appearance of the pink teeth with time and cause of death, measuring the color. Were conducted a field study at the Institute of Forensic Medicine of Curitiba, where were analyzed 15 specimens with different causes of death. For the staining was used to measure the color gamut of RGB Hex Triplet Color Char and held visual comparison of the teeth. It was verified that the teeth of the battery lip, i.e. from canine to canine were the most affected teeth and the neck of the teeth – or the tooth neck region of the cementum-enamel junction, or neck of the tooth, it shows one more exuberant color. Is proposed the development of a electronic colorimeter as future work, with the subject to automate the capture the color in the pink teeth.
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Hägglund, Eric. "Hogging Wealth : Dental analyses and an interdisciplinary study of the importance of pigs in prehistoric economies." Thesis, Uppsala universitet, Institutionen för arkeologi och antik historia, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-324728.

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Studies in zoo-archaeological Neolithic contexts is the study of early animal domestication in relation to humans transitioning into a more sedentary species. Research and documentation are vital for reconstructing the mechanisms behind the threshold event. In this thesis, teeth of Suidae have been documented, analysed and compared osteologically and interpreted cross-culturally. In addition, aDNA, isotope, coat colour and physical mammal size affecting factor studies are presented to contextualise this thesis. Primary osteological methods are Mandibular Wear Stage (MWS), Linear Enamel Hypoplasia (LEH) recordings and lower jaw third molar (M3) length measurement. These methods can detect biometric domestication markers. The analysed Suidae teeth are from the Middle Neolithic site of Ajvide, Gotland, Sweden. A collection of modern wild boar act as Control sample. These teeth are compared primarily with known domestic pig teeth sample statistics from the British Late Neolithic site of Durrington Walls, Wiltshire, United Kingdom. Results indicate that the Middle Neolithic Pitted Ware culture (PWC) on Gotland hunted during winter and kept limited numbers of captive wild boars as totemic animals (pets) possibly bound to land and ancestry. However, an exact reconstruction of the PWC pig pet keeping practices are uncertain due to human-pig relationships being highly dynamic. Intensified pig hunting, not pet keeping should be considered early domestication. Domestication carries with it detectable biometric markers, which seem to be rare in the Neolithic. The cross-cultural comparisons on traditional pig ‘low-intensity husbandry’ can attest to a human-pig relationship of hunter-gatherers keeping captive wild animals. The pig was not a staple food for the PWC and thus not intensively hunted, rather pigs were rare ritualistic commodities and likely highly praised. Perpetuating this human-pig relationship could have been maintained by PWC ‘big men’ that engaged in socio-political lavish giveaways at festivities and funerals, thus ‘hogging wealth’, but never domesticated the pig.<br>Studier i neolitiska zoo-arkeologiska sammanhang är undersökningar av tidig domesticering av djur i förhållande till mänsklighetens övergång till en mer stillasittande art. Forskning och dokumentation är avgörande för att rekonstruera mekanismerna bakom övergången. I denna uppsats har svintänder dokumenterats, analyserats och jämförts osteologiskt och tolkats tvärkulturellt. Studier i aDNA, isotop, pälsfärg och fysiska storleksfaktorer hos däggdjur presenteras också för att kontextualisera denna uppsats. Primära osteologiska metoder är tandslitage i underkäke (MWS), linjär emaljhypoplasi (LEH) och underkäkens tredje molar (M3) mätningar. Dessa metoder kan finna biometriska domesticeringsmarkörer. De analyserade svintänderna kommer ifrån den mellanneolitiska lokalen Ajvide, Eksta socken, Gotland. En samling moderna vildsvin agerar kontrollmaterial. Dessa tänder jämförs i första hand med kända domesticerade stenåldersvin från den Brittiska senneolitiska lokalen Durrington Walls, Wiltshire, Storbritannien. Resultaten indikerar på att den mellanneolitiska gropkeramiska kulturen (GRK), jagade på Gotland under vinterhalvåret och tog tillfånga ett begränsat antal svin som husdjur (totemdjur). Troligen togs svin tillfånga av olika ’hus’ till följd av att svinet var bundet till land och förfäder. En exakt rekonstruktion av GRKs svinhållningspraktik är dock osäkert på grund av att människo-svin relationer är dynamiska. Intensifierad svinjakt, inte tillfångatagandet av enstaka djur bör betraktas som tidig domesticering. Domesticering medför speciella biometriska markörer som är ovanligare i neolitisk tid. De tvärkulturella jämförelserna i traditionell "lågintensiv svinhållning" kan intyga på ett sådant förhållande mellan jägare-samlar grupper och vildsvin. Även om svinet inte var en basföda åt GRK, och därmed inte intensivt jagade, var svinen sällsynta ritualistiska handelsvaror och troligen högt värdesatta. Gropkeramiska "stormän" kan ha varit de drivande bakom denna praktik. Dessa ”stormän” engagerade sig i sociopolitiska aktiviteter, festligheter och begravningar, och därmed hade "hamstrat välstånd", men domesticerade aldrig svinet.
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Figueiredo, Fabricio Eneas Diniz de. "Incidência de fratura radicular em dentes submetidos à terapia endodôntica e restaurados com pinos de fibra ou pinos metálicos : revisão sistemática e metanálise." Universidade Federal de Sergipe, 2015. https://ri.ufs.br/handle/riufs/5899.

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Endodontically treated teeth have commonly lost most of their coronal structure. In order to restore them, an intrarradicular retainer is required to improve the restorations retention. Event though they have a proper clinical performance, their use has been related to failures such as root fractures. The aim of this systematic review was to analyze the outcome of clinical trials and cohort studies evaluating the post-retained restorations regarding the incidence rate of root fractures. The tested hypothesis was that the incidence rate related to the use of metal posts is higher than that of fiber posts. A search for clinical studies reporting the incidence of root fractures of restorations retained with fiber-reinforced composite posts or metal posts of endodontically treated teeth with more than 5-year of follow-up was conducted from inception to January 2014. Seven randomized clinical trials and 7 cohort studies were included. The overall incidence rate of root fractures was 5.13 (95% CI, 4.05-6.21) per 1000 posts-year. An almost 2-fold increase in the incidence rate of root fractures for prefabricated metal posts and carbon fiber posts compared with cast metal posts and glass fiber posts was observed, respectively. The pooled survival rate was 90% (95% CI, 85.5-93.3) for metal-based posts and 83.9% (95%, CI 67.6-92.8) for fiber-reinforced posts. The results of this study do not support the indication of fiber-reinforced posts based on a reduction of catastrophic failures. However, this review demonstrated the need for further well-designed clinical studies evaluating intra-radicular retainers.<br>Dentes submetidos à tratamento endodôntico geralmente apresentam grande destruição coronária. Para restaurá-los, o uso de retentor intrarradicular se faz necessário para melhorar a retenção da restauração. Apesar do sucesso clínico, falhas catastróficas têm sido atribuídas ao seu uso. O objetivo desta revisão sistemática foi analisar o resultado de ensaios clínicos e estudos de coorte que reportam a taxa de incidência de fraturas radiculares associadas ao uso de pinos intrarradiculares. A hipótese foi que dentes restaurados com uso de pinos metálicos apresentam maior incidência de fraturas radiculares que aqueles restaurados com de pino de fibra. Até Janeiro de 2014, buscou-se por estudos clínicos que avaliaram o índice de fraturas radiculares relacionadas ao uso de retentores intrarradiculares metálicos ou de fibra de vidro em dentes submetidos à tratamento endodôntico com tempo de acompanhamento superior a cinco anos. Sete ensaios clínicos randomizados e sete estudos de coorte foram incluídos. A taxa de sobrevivência estimada foi de 90% (95% intervalo de confiança {IC} 85,5 – 93,3) para pinos metálicos e 83,9% (IC 95%, 67,6 – 92,8) para pinos de fibra. A taxa de incidência total de fraturas radiculares (falhas catastróficas) foi similar entre pinos metálicos e de fibra. Pinos metálicos pré-fabricados e pinos de fibra de carbono apresentaram taxa de incidência de fraturas radiculares duas vezes maior quando comparadas com núcleos metálicos fundidos e pinos de fibra de vidro respectivamente. Os resultados deste estudo não demonstraram diferenças significantes na taxa de incidência de fraturas radiculares entre pinos metálicos e de fibra. Entretanto, os estudos incluídos nesta revisão apresentaram alto risco de viés, portanto, há necessidade de se realizarem estudos clínicos bem delineados para confirmar estes achados.
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Nassar, Diaa Eldin M. "A prototype automatic dental identification system (ADIS)." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=1977.

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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains v, 72 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 70-72).
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Lin, Jack Cheng-Wei, and n/a. "Electric pulp testing of molar teeth." University of Otago. School of Dentistry, 2007. http://adt.otago.ac.nz./public/adt-NZDU20071221.140417.

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Testing the vitality of teeth using electric pulp testers was reviewed. Two studies then investigated aspects of the application of electric pulp testing (EPT) to healthy first molar teeth. Twenty volunteers with first molars free of restorations and caries were recruited. One molar from each arch was selected and rubber dam applied. The tester probe was coated with fluoride gel. Seven sites on each crown were EPT tested four times, and all threshold responses recorded. Data were analysed using one way ANOVA at the 0.01 level. The lowest response for both the maxillary and mandibular teeth was with the probe on the mesio-buccal cusp tip. Males responded at a lower level than females at the mesio-buccal cusp tip, but this did not reach statistical significance. The relationship between pulp areas and dimensions on radiographs and the EPT results was investigated. Standardised bitewing radiographs of the tested molars were mounted and digitally scanned. Five measurements were taken using a computer program; crown width, the mesial and distal pulp horn heights, the area of the clinical crown, and the pulp area in the clinical crown. The four electrode placement sites with the lowest threshold from the pulp testing results were selected. Pearson correlations (2-tailed) were used to relate the measurements. There were no correlations between the coronal pulp size, pulp horn height and the probe placement site. The exception was an anomalous correlation between the distal horn height and mesio-buccal cuspal area of the maxillary molars.
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Walker, Richard Thomas. "A comparative investigation of the root number and canal anatomy of permanent teeth in a Southern Chinese population." Thesis, [Hong Kong : University of Hong Kong], 1987. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12335423.

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Books on the topic "Teeth Teeth Dental Pins"

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Iveson-Iveson, Joan. Your teeth. Bookwright Press, 1985.

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Ford, T. R. Pitt. The restoration of teeth. Blackwell Scientific, 1985.

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The restoration of teeth. Blackwell Scientific, 1985.

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Ford, T. R. Pitt. The Restoration of teeth. Blackwell Scientific Publications, 1985.

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Ford, T. R. Pitt. The restoration of teeth. 2nd ed. Blackwell Scientific, 1992.

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N, Johnson Orlen, and De Lyre, Wolf R., 1912-, eds. Essentials of dental radiography for dental assistants and hygienists. 9th ed. Pearson, 2012.

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We like our teeth. Hohm Press, 2009.

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Mikell, Worley, and American Literacy Corporation for Young Readers, eds. Say ahh!: The teeth book. American Literacy Corporation for Young Readers, 2008.

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International Symposium on Dental Morphology (12th 2001 Sheffield, England). Dental morphology 2001. Edited by Brook Alan. Sheffield Academic Press, 2001.

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Widdowson, T. W. Notes on dental anatomy and physiology and dental histology (human and comparative): Student choice notes. 5th ed. Dr T. W. Widdowson (US), Dr Faraz Mohammed (India): Crusons Publications, 2009.

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Book chapters on the topic "Teeth Teeth Dental Pins"

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Höhling, H. J. "Special Aspects of Biomineralization of Dental Tissues." In Teeth. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83496-7_7.

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Frank, R. M., and J. Nalbandian. "Structure and Ultrastructure of the Dental Pulp." In Teeth. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-83496-7_5.

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Zhou, Zhong-Rong, Hai-Yang Yu, Jing Zheng, Lin-Mao Qian, and Yu Yan. "Introduction to Teeth." In Dental Biotribology. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-4550-0_1.

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Zhou, Zhong-Rong, Hai-Yang Yu, Jing Zheng, Lin-Mao Qian, and Yu Yan. "Microtribology of Human Teeth." In Dental Biotribology. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-4550-0_5.

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Larheim, Tore A., and Per-Lennart A. Westesson. "Teeth and Dental Implants." In Maxillofacial Imaging. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-53319-3_7.

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Schuurs, Albert. "Discoloration of Teeth." In Pathology of the Hard Dental Tissues. John Wiley & Sons, Ltd,., 2013. http://dx.doi.org/10.1002/9781118702659.ch10.

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Alt, Kurt W., and Sandra L. Pichler. "Artificial Modifications of Human Teeth." In Dental Anthropology. Springer Vienna, 1998. http://dx.doi.org/10.1007/978-3-7091-7496-8_20.

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Türp, Jens C., and Kurt W. Alt. "Anatomy and Morphology of Human Teeth." In Dental Anthropology. Springer Vienna, 1998. http://dx.doi.org/10.1007/978-3-7091-7496-8_6.

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Tiong, Noah Teo Bo, and Loo Sun Din. "Replacing Missing Teeth: Dental Implants." In Atlas of Operative Maxillofacial Trauma Surgery. Springer London, 2020. http://dx.doi.org/10.1007/978-1-4471-5616-1_44.

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Zhou, Zhong-Rong, Hai-Yang Yu, Jing Zheng, Lin-Mao Qian, and Yu Yan. "Friction and Wear Behavior of Human Teeth." In Dental Biotribology. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-4550-0_3.

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Conference papers on the topic "Teeth Teeth Dental Pins"

1

Hu, Zhanli, P. Z. Wu, Jianbao Gui, Yao Chen, and Hairong Zheng. "Teeth segmentation using dental CT data." In 2014 7th International Conference on Biomedical Engineering and Informatics (BMEI). IEEE, 2014. http://dx.doi.org/10.1109/bmei.2014.7002747.

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Rawicz, Andrew H., Ivan Melnyk, and Pawel Kowalski. "Translucency measurements in teeth and dental materials." In Biomedical Optics 2003, edited by Peter Rechmann, Daniel Fried, and Thomas Hennig. SPIE, 2003. http://dx.doi.org/10.1117/12.500135.

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Low, I. M., J. Fulton, P. Cheang, and K. A. Khor. "DESIGNING NEW DENTAL MATERIALS THROUGH MIMICKING HUMAN TEETH." In Processing and Fabrication of Advanced Materials VIII. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812811431_0043.

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Marras, I., L. Papaleontiou, N. Nikolaidis, K. Lyroudia, and I. Pitas. "Virtual Dental Patient: a System for Virtual Teeth Drilling." In 2006 IEEE International Conference on Multimedia and Expo. IEEE, 2006. http://dx.doi.org/10.1109/icme.2006.262533.

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Sinescu, C., V. F. Duma, S. Canjau, et al. "Dentistry investigations of teeth and dental prostheses using OCT." In SPIE Photonics Europe, edited by Jürgen Popp, Valery V. Tuchin, Dennis L. Matthews, and Francesco S. Pavone. SPIE, 2016. http://dx.doi.org/10.1117/12.2227443.

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Rekow, D., and V. Thompson. "Dental Materials and Teeth: Testing Demands and Performance Challenges (Keynote)." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63768.

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Contact fatigue plays a critical role in performance of dental materials. Both naturally occurring materials (e.g., the tooth itself) and restorative materials, particularly ceramics are vulnerable to contact fatigue-induced and fatigue-exacerbated damage. Normal chewing functions are complex and unless accurately mimicked by test methods, do not reproduce clinically relevant failure modes. Without this, development of new material systems cannot proceed on a rational basis and will continue to rely on patients serving as the testing ground.
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Al-sherif, Nourdin, Guodong Guo, and Hany H. Ammar. "Automatic Classification of Teeth in Bitewing Dental Images Using OLPP." In 2012 IEEE International Symposium on Multimedia (ISM). IEEE, 2012. http://dx.doi.org/10.1109/ism.2012.26.

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Poonsri, Arisa, Napapa Aimjirakul, Theekapun Charoenpong, and Chamaiporn Sukjamsri. "Teeth segmentation from dental x-ray image by template matching." In 2016 9th Biomedical Engineering International Conference (BMEiCON). IEEE, 2016. http://dx.doi.org/10.1109/bmeicon.2016.7859599.

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Aeini, Faraein, and Fariborz Mahmoudi. "Classification and numbering of posterior teeth in bitewing dental images." In 2010 3rd International Conference on Advanced Computer Theory and Engineering (ICACTE 2010). IEEE, 2010. http://dx.doi.org/10.1109/icacte.2010.5579369.

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Rahmat, Romi Fadillah, Silviani Silviani, Erna Budhiarti Nababan, Opim Salim Sitompul, Rina Anugrahwaty, and Silmi Silmi. "Identification of molar and premolar teeth in dental panoramic radiograph image." In 2017 Second International Conference on Informatics and Computing (ICIC). IEEE, 2017. http://dx.doi.org/10.1109/iac.2017.8280614.

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