Academic literature on the topic 'Endodontics Root Canal Obturation'
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Journal articles on the topic "Endodontics Root Canal Obturation"
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Zivkovic, Slavoljub, Tatjana Brkanic, Dragoslav Dacic, Vanja Opacic, Violeta Pavlovic, and Milica Medojevic. "Smear layer in endodontics." Serbian Dental Journal 52, no. 1 (2005): 7–19. http://dx.doi.org/10.2298/sgs0501007z.
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Modern methods of root canal cleaning and filing are causing formation of the smear layer on treated surfaces. The aim of this paper was to review clinical aspect of smear layer in endodontics. Smear layer is the consequence of instrumentation of root canal walls and is consisted of organic and inorganic particles of cut dentine, necrotic and/or vital pulp fragments, microorganisms and their products. Existence of smear layer is affecting permeability of the radicular dentine, thus decreasing effects of canal medicaments and impairing adhesion of obturation materials in root canal. Removal of the smear layer from canal walls is possible with use of various chemical agents, ultrasonic or laser techniques. Regardless to contradictory attitudes and opinions, removing the smear layer is required for possible bacterial contamination, compromised effects of root canal medication and in order to obtain better obturation of canals 'system. .
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Geethanjali, R. "Single visit endodontics." IP Indian Journal of Conservative and Endodontics 6, no. 3 (September 15, 2021): 147–51. http://dx.doi.org/10.18231/j.ijce.2021.032.
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A successful endodontic treatment depends upon localization, proper chemo mechanical preparation of the root canal system, debridement, shaping, disinfection, and three-dimensional obturation of canal system. To achieve this, endodontic therapy used to be performed in multiple visits for complete disinfection of the canals in other words for the better success of endodontic therapy.1
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Mustaffa, Musliana. "The use of bioceramic root canal sealers for obturation of the root canal system: A review." IIUM Journal of Orofacial and Health Sciences 2, no. 1 (February 28, 2021): 14–25. http://dx.doi.org/10.31436/ijohs.v2i1.55.
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The use of bioceramic root canal sealers in endodontics is a promising approach because of the advantages such as improved flow properties, biocompatible and could promote the formation of hard tissue. Due to the recent technology and limited scientific evidence, the effectiveness of bioceramic root canal sealers remains unclear. This article focuses on the physicochemical properties, biocompatibility, biomineralisation, retreatability, 3D obturation and current practice of using bioceramic root canal sealers. The relevant articles for this review were searched manually from Google Scholar and PubMed using keywords ‘bioceramic root filling material AND endodontics’, ‘bioceramic root canal sealers AND endodontics’, ‘cytotoxicity AND bioceramic root canal sealers’, ‘bioceramic root canal sealers AND physicochemical properties’, ‘biomineralisation AND bioceramic root canal sealers’ and ‘retreatment efficacy AND bioceramic root filling materials’. Since the clinical data concerning the obturation with bioceramic root canal sealers is lacking, the selection of materials should be made based on the available scientific evidence, individual cases, material availability and operator’s preference.
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Dastmalchi, Nafiseh, Zeinab Kazemi, Siroos Hashemi, Ove A. Peters, and Hamid Jafarzadeh. "Definition and Endodontic Treatment of Dilacerated Canals: A Survey of Diplomates of the American Board of Endodontics." Journal of Contemporary Dental Practice 12, no. 1 (2011): 8–13. http://dx.doi.org/10.5005/jp-journals-10024-1002.
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ABSTRACT Aim To gather data from Diplomates of the American Board of Endodontics regarding treatment of dilacerated canals. Materials and methods A questionnaire addressing definition, endodontic treatment procedures and prognosis was constructed and distributed via e-mail to 708 Diplomates of the American Board of Endodontics. Data from 150 respondents, a 21% response rate, were collected by using a Web-based interface. For statistical analysis, Chi-square tests were used. Results More than 25% of respondents believed that a dilacerated root should have a curvature > 40°. One-visit treatment is the best therapeutic approach and transportation is the most likely complication in preparation of these canals. A crown-down technique, watch-winding motion and a master apical file # 25 are the best choices for preparation of these canals. Any warm obturation technique is preferred over lateral compaction by most respondents. Conclusion A crown-down technique for root canal preparation and a thermoplastic obturation technique are recommended for canals whose curvature is more than 40°. The prognosis of the treatment of these canals is judged not lower than normal canals. Clinical significance Crown-down technique and thermoplastic obturation are recommended for dilacerated canals. How to cite this article Dastmalchi N, Kazemi Z, Hashemi S Peters OA, Jafarzadeh H. Definition and Endodontic Treatment of Dilacerated Canals: A Survey of Diplomates of the American Board of Endodontics. J Contemp Dent Pract 2011;12(1):8-13.
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Timme, Maximilian, Max Masthoff, Nina Nagelmann, Malte Masthoff, Cornelius Faber, and Sebastian Bürklein. "Imaging of root canal treatment using ultra high field 9.4T UTE-MRI – a preliminary study." Dentomaxillofacial Radiology 49, no. 1 (January 2020): 20190183. http://dx.doi.org/10.1259/dmfr.20190183.
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Objectives: To investigate the potential of 9.4T ultrashort echo time (UTE) technology visualizing tooth anatomy and root canal treatment in vitro. In particular, it was evaluated whether the currently achievable resolution is suited presenting all anatomical structures and whether the root canal filling materials are distinguishable in UTE-MRI. Methods: Four extracted human teeth were examined using 9.4T UTE-MRI prior endodontic treatment (native teeth), after preparation and after obturation procedure. Root canal obturation was performed using warm vertical compaction (Schilder technique) with an epoxy-resin-based sealer. A single gutta-percha cone measured by MRI served as intensity-reference. MRI results were validated with corresponding histologic sections of the teeth. In addition, all teeth were examined at the different stages with CBCT and conventional X-ray. Results: 9.4T UTE-MRI enabled a precise visualization of root canal anatomy of all teeth at a resolution of 66 µm. After obturation, dentin, sealer and gutta-percha cones showed distinct MRI signal changes that allowed clear differentiation of the obturation materials from surrounding tooth structure. The filling materials, isthmal root canal connections and even dentin-cracks that were identified in the MR-images could be verified in histological sections. Conclusions: 9.4T UTE-MRI is suitable for visualization of root canal anatomy, the evaluation of root canal preparation and obturation with a high spatial resolution and may provide a versatile tool for dental material research in endodontics.
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Ceribelli, Angelica Godinho, Sandrine Bittencourt Berger, Thais Maria Freire Fernandes, Eloisa Aparecida Carlesse Paloco, Murilo Baena Lopes, Alejandra Hortencia Miranda González, Guilherme Genovez-Júnior, and Ricardo Danil Guiraldo. "The Filling Evaluation of Lateral Canals in the Root Canal Obturation." Ensaios e Ciência C Biológicas Agrárias e da Saúde 24, no. 3 (October 26, 2020): 219–22. http://dx.doi.org/10.17921/1415-6938.2020v24n3p219-222.
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A complexidade anatômica dos canais radiculares, por exemplo, sua forma, curvatura e diversidade da curvatura do raio, bem como a presença de istmo de alto índice e canais laterais, são fatores importantes a serem levados em consideração na terapia endodôntica. Assim, o objetivo neste estudo foi avaliar o preenchimento total de canais laterais simulados com dois diferentes cimentos endodônticos. Foram utilizados 8 dentes anteriores extraídos por razões periodontais. Foram confeccionados canais laterais com uma broca carbide esférica ¼ a uma distância de 4 mm do ápice radicular. Em seguida, os dentes foram radiografados no sentido anteroposterior. Os canais radiculares destes dentes foram preparados utilizando-se de um sistema reciprocante 25.08 acionados por motor elétrico X Smart Plus até o comprimento de trabalho utilizando hipoclorito de sódio 2,5% como solução irrigante. Os dentes foram divididos em 2 grupos (n=4) de acordo com diferentes cimentos endodônticos (AH Plus ou Bio C Sealer). Os canais foram secos com pontas de papel absorvente, depois foram preenchidos com cone médio e diferentes cimentos endodônticos. O preenchimento total de canais laterais simulados foram avaliados a partir de novas radiografias digitais realizadas após obturação dos dentes. Os canais laterais simulados não foram completamente preenchidos, independentemente do cimento endodôntico utilizado, e os resultados demonstraram que os diferentes cimentos avaliados não preencheram os canais radiculares laterais simulados.
Palavras-chave: Endodontia. Obturação do Canal Radicular. Materiais Restauradores do Canal Radicular.
Abstract
The anatomical complexity of root canals, for instance, their shape, curvature and radius curvature diversity, as well as the presence of high index isthmus and lateral canals are important factors to be taken into consideration in endodontic therapy. Thus, the aim of the present study was to assess complete filling of simulated lateral canals with two different endodontic cements. Eight anterior teeth extracted due to periodontal reasons were used in the experiment. Lateral canals were opened with ¼ spherical-shaped carbide drill 4 mm away from the root apex. Teeth were subjected to X-ray in anteroposterior position. The root canals of these teeth were prepared with the aid of a 25.08 reciprocating system in electrically driven motor X Smart Plus for its working length by using 2.5% sodium hypochlorite as irrigating solution. The teeth were divided into 2 groups (n=4) according to different endodontic cements (AH Plus or Bio C Sealer). Root canals were dried with paper points, afterwards were filling with medium cone and different endodontic cements. The complete filling of simulated lateral canals was assessed based on new digital radiographs taken after teeth filling. The simulated lateral canals were not completely filled, regardless of the used endodontic cement. Results have shown that the different assessed cements did not fill the simulated lateral root canals.
Keywords: Endodontics. Root Canal Filling. Root Canal Sealer Materials.
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Beljic-Ivanovic, Katarina, Nevenka Teodorovic, and Dejan Ostojic. "Endodontic treatment of the teeth with different root canal curvatures: Two case reports." Serbian Dental Journal 56, no. 2 (2009): 91–96. http://dx.doi.org/10.2298/sgs0902091b.
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Endodontic treatment of the teeth with severe root canal curvatures has become one of the greatest problems in clinical practice. Recently, new instruments and techniques have been introduced in the endodontic procedure. The aim of this study was, on the basis of clinical practice, to show the possibilities of the endodontic treatment in the teeth with severely curved root canals, after dependable decision about endodontic instruments and techniques. This article presents a complete endodontic procedure in two teeth with different curvature shape of the root canal in patients that were treated at the Department of Restorative Dentistry and Endodontics, School of Dentistry, Belgrade. Coronal to apical 'crown down' technique was used for the root canal preparation with hand NiTi ProTaper instruments with progressive multicone design. The main reasons for choosing manual technique were complexity, shape of presented curvatures and better tactile sensation control of canal instruments in order to avoid possible mistakes and complications. Clinical X-rays of the teeth with permanent obturation clearly showed that extremes of the root canal morphology could be successfully solved by the right choice of all factors during endodontic procedure.
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Lakshmi Lakshmanan, Subramanian EMG, Ganesh Jeevanandan, and Mebin George Mathew. "A Cross-Sectional Study on the Preference of Root Canal Sealers Among Pediatric Dentists For Obturating Permanent Teeth." International Journal of Research in Pharmaceutical Sciences 11, SPL4 (December 20, 2020): 226–32. http://dx.doi.org/10.26452/ijrps.v11ispl4.3775.
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Utilisation of root canal sealers to perform obturation procedures is an endorsed method in endodontics and has an indispensable role in the success of treatment. The objective of this study was to explore the pediatric dentists’ preference for root canal sealers for obturating permanent teeth. 360 permanent teeth with gutta-percha obturation done by pediatric dentists were analyzed for the study. The variety of root canal sealers that are utilised for obturating the permanent teeth by pediatric dentists were assessed. The data were obtained from a patient management software. Chi-square test was performed. Out of the 360 permanent teeth, 186 teeth were obturated using resin-based sealers, 101 teeth using zinc oxide eugenol-based sealers and 73 teeth were obturated using calcium hydroxide-based sealers, with statistically significant difference between the three materials (P<0.05). Based on the findings of the present study, resin sealers followed by zinc oxide eugenol sealers and calcium hydroxide sealers were more preferred by pediatric dentists for root canal therapy in permanent teeth.
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Bandéca, Matheus Coelho, Milton C. Kuga, Keren CF Jordão-Basso, Mateus R. Tonetto, Arturo J. Aranda-Garcia, Fernando A. Vázquez-Garcia, Suellen NL Lima, and Jardel C. do Carmo Monteiro. "Persistence of Residues after Endodontic Retreatment related to the Obturation Technique and to the Solvent." World Journal of Dentistry 8, no. 1 (2017): 41–44. http://dx.doi.org/10.5005/jp-journals-10015-1408.
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ABSTRACT Objective To quantify the persistence of residues after endodontic retreatment related to the root canal obturation technique (lateral compaction or single cone) previously performed and the solvent used (xylol or Endosolv-R) in the cervical and root apical segment using digital radiograph. Materials and methods Forty root canals were prepared using the F2 instrument and filled with gutta-percha and AH Plus, 20 canals using #25 point by lateral compaction and the other 20 using F2 point by single cone. The root canals were transversely sectioned, and two segments (cervical and apical) were obtained. Radiographs were taken from the segment in buccolingual and mesiodistal direction, as well as the area that was originally filled with the root canal obturation was measured using ImageJ. After the specimens were set on special devices, the obturations were removed using the rotary system and divided into four groups (n = 10): G1 — lateral compaction and xylol; G2 — lateral compaction and Endosolv-R; G3 — single cone and xylol; and G4 — single cone and Endosolv-R. A new radiograph was taken and the area occupied by residues was measured. The persistence of residues was obtained from the obturation remaining in the root canal in percentage. The data were analyzed using Kruskal—Wallis test (p = 0.05). Results There was no difference among the examined groups, regardless of the radicular segment or the radiograph direction (p > 0.05). Conclusion The endodontic retreatment using xylol or Endosolv-R in the obturations previously performed by lateral compaction or single cone technique presented similar persistence of residues in the root canal, regardless of the radicular segment. How to cite this article Aranda-Garcia AJ, Kuga MC, Vázquez-Garcia FA, Tonetto MR, Bandeca MC, Lima SNL, Freitas J, Borges AH, Jordão-Basso KCF, do Carmo Monteiro JC. Persistence of Residues after Endodontic Retreatment related to the Obturation Technique and to the Solvent. World J Dent 2017;8(1):41-44.
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Darvesh, Sajjad Ali, Irum Naz, Abdul Razzaq Ahmed, Farhan Butt, Wasey Latif, and Azam Shahzad. "To compare post obturation endodontic flare-ups following single and multiple visit root canal treatment." Professional Medical Journal 27, no. 07 (July 10, 2020): 1516–20. http://dx.doi.org/10.29309/tpmj/2020.27.07.4618.
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Objective: To compare post obturation endodontic flare-ups following single and multiple visit root canal treatment. Study Design: Quasi experimental study. Setting Operative dentistry department, DOW university hospital Karachi. Period: 2nd October 2017 to 2nd April 2018. Material & Methods: A total of 100 patients of permanent exposed anterior teeth with positive pup response / vital, either gender were included. Patients divided into two groups according to single and multiple visit root canal treatment. At each post obturation recall visit the patients were interviewed and inspected to determine whether or not there are symptoms. Results: A total of 100 patients came for root canal treatment. At 1st post obturation day, out of 50 patients treated in one visit, four experienced a flare-up (8%). Out of 50 patients treated in two visits, eight experienced a flare-up (16%) (P-value=0.12). At 3rd post obturation day, out of 50 patients treated in one visit, three experienced a flare-up (6%). Out of 50 patients treated in two visits, five experienced a flare-up (10%) (P-value=0.37). Conclusion: We conclude that almost same results for single and multiple visit endodontics were achieved not statistically significant.
Dissertations / Theses on the topic "Endodontics Root Canal Obturation"
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Winocur, Estela Marta Doffo de 1964. "Avaliação do selamento e transporte apical em dentes humanos com canais preparados com o sistema rotatório MTWO® com e sem ampliação foraminal = estudo in-vitro." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289191.
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Orientador: Adriana de Jesus SoaresTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O objetivo deste estudo in vitro foi avaliar o selamento apical após obturação endodôntica, em dentes humanos preparados com e sem ampliação do forame apical, com o Sistema Rotatório Mtwo® (VDW, Munique, Alemanha). Vinte prémolares inferiores foram divididos em dois grupos. No Grupo I, os canais radiculares foram preparados 1mm além do forame apical e, no Grupo II, 1 mm aquém do CRC. Os dentes foram preparados para avaliação no MEV (JEOL, Modelo JSM 5600LV, Tókio, Japão) e as imagens do forame apical obtidas em aumento de 75x, em posições padronizadas, permitindo a mensuração da área foraminal antes, após o preparo e após a obturação. Por meio do processo do Sistema de Subtração de Imagens (Emago® Sistema de Diagnóstico Oral, Louwesweg, Amsterdam, Holanda), foi possível identificar as variações de forma e transporte do forame apical assim como o nível de preenchimento de sua circunferência pelo cimento obturador Pulp Canal Sealer (Sybron Endo, USA) após o preparo. Os resultados encontrados, submetidos à análise estatística, permitiram concluir que os dentes do Grupo I apresentaram maior diâmetro foraminal que os do Grupo II (Teste Anova, p<0,05) e que houve diferença estatisticamente significante quanto ao transporte do forame (Teste Exato de Fisher, p=0,0108); quanto ao selamento apical houve diferença estatisticamente significante entre os grupos I e II (Testes t de Student e Exato de Fisher, p=0,0007) sendo que, no Grupo I, ocorreram selamento em 100% dos espécimes analisados
Abstract: The aim of this in vitro study was to evaluate the apical root sealing after endodontic filling, in human teeth that were prepared with and without apical foramen enlargement by Mtwo® Rotary System (VDW, Munich, Germany). Twenty mandibular premolars were divided in two groups. Group I had root canals prepared 1mm beyond apical foramen, and in Group II, 1mm below RCL. Teeth were prepared for an electronic microscopy analysis (JEOL, Model JSM 5600LV, Tokyo, Japan). Apical foramen images were 75 times magnified, at standardized positions, allowing measurements from apical foramen area before and after root canal preparation, and after root filling. By using the Image Subtraction System (Emago®, Oral Diagnostic System, Louwesweg, Amsterdam, Netherlands) apical foramen shape modifications and transportation as well as the level of its circumferential filling by Pulp Canal Sealer cement (Sybron Endo, USA) after root canal preparation were accessed. After statistical analysis, results allowed to conclude that Group I teeth showed larger foraminal diameter than Group II (Anova Test, p<0,05) and that foramen transportation difference was statistically significant (Fisher Exact Test, p=0,0108); apical foramen sealing also differed statistically between groups I and II (Student t Test and Fisher Exact Test, p=0,0007) and that 100% of Group I specimens showed apical root sealing
Doutorado
Endodontia
Doutor em Clínica Odontológica
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Espir, Camila Galletti. "Emprego da microtomografia computadorizada na análise de preparo, limpeza e obturação de canais radiculares ovalados /." Araraquara, 2018. http://hdl.handle.net/11449/152837.
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Orientador: Mário Tanomaru FilhoResumo: Este estudo avaliou morfologia, preparo e obturação com diferentes técnicas e materiais em canais radiculares ovais. Quinhentos e vinte incisivos inferiores foram avaliados por meio de radiografias digitais nos sentidos vestíbulo lingual (VL) e mesio distal (MD), sendo obtidos a partir da relação de diâmetro VL/MD: 23.3% canais achatados; 41.3% ovais; 27.3% arredondados; 4.5% redondos e 3.6% com achatamento VL (Publicação 1). Os incisivos classificados como ovais foram preparados: Reciproc 40 (R40) reciprocante anti-horário; MTwo 40, taper .06 (M 40.06) reciprocante horário (150° horário e 30° anti-horário); e MTwo 20, taper .06 seguido de MTwo 40, taper .06 (M 20/40.06) em reciprocante horário (Publicação 2); R40, Unicone 20.06 seguido de 40.06 reciprocante (Uni20/40.06) e sistema Mtwo até 40.06 rotatório (Mtwo seq) (Publicação 3); e R40, M40.06 e Mtwo seq (Publicação 4). A obturação foi realizada pelas técnicas de cone único (CU) ou condensação lateral (CL) e cimento AH Plus (AHP) (Publicação 4); CU e AHP ou Neo MTA Plus (NMTAP) (Publicação 5); e CL e MTA Fillapex (MTAF) ou AHP (Publicação 6). Escaneamentos foram realizados antes e após cada etapa experimental, utilizando o microtomófrafo SkyScan 1176. Volume, porcentagem de debris, de superfície não instrumentada e de falhas na obturação foram obtidos. Dados foram submetidos aos testes estatísticos ANOVA e Tukey, Kruskal-Wallis e Dunn, T Pareado ou Mann-Whitney (α=0.05). Reciproc e MTwo usando diferentes cinemáticas aprese... (Complete abstract click electronic access below)
Abstract: This study evaluated the morphology, preparation and filling using different techniques and materials in oval-shaped canals. Five hundred and twenty mandibular incisors were evaluated using digital radiography in the buccolingual (BL) and mesio distal (MD) directions, being obtained from the VL / MD diameter ratio: 23.3% flattened canals; 41.3% ovals; 27.3% rounded; 4.5% round e 3.6% with flattening BL (Publication 1). The oval-shaped incisors were prepared: Reciproc 40 (R40) counterclockwise reciprocating; MTwo 40, taper .06 (M 40.06) clockwise reciprocating (150° clockwise and 30° counterclockwise); and MTwo 20, taper .06 and MTwo 40, taper .06 (M 20/40.06) clockwise reciprocating (Publication 2); R40, Unicone 20.06 and 40.06 reciprocanting (Uni20/40.06) and Mtwo rotary system until 40.06 (Mtwo seq) (Publication 3); and R40, M40.06 e Mtwo seq (Publication 4). Filling was performed using single-cone technique (SC) or lateral condensation (LC) and AH Plus sealer (AHP) (Publication 4); SC and AHP or Neo MTA Plus (NMTAP) sealer (Publication 5); and LC using MTA Fillapex (MTAF) or AHP sealer (Publication 6). Scans were performed before and after each experimental stage, using the SkyScan 1176 micro-computed tomography. Volume, percentage of debris, percentage of uninstrumented surface and voids in obturation were obtained. Data were submetted to ANOVA and Tukey's tests or Kruskal-Wallis and Dunn tests, non-paired T test or Mann-Whitney (α=0.05). Reciproc and Mtwo using different... (Resumo completo, clicar acesso eletrônico abaixo)
Doutor
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Andrade, Júnior Carlos Vieira. "Avaliação in vitro da capacidade seladora e adesiva do AH Plus associado a um sistema adesivo, após o uso de diferentes substâncias químicas auxiliares." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290486.
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Orientador: Caio Cézar Randi FerrazDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O objetivo deste estudo in vitro foi avaliar o selamento coronário e resistência de união do cimento resinoso AH Plus associado a um protocolo de hibridização da dentina radicular com Scotchbond Multi Purpose (SBMP) após o uso de diferentes substâncias químicas auxiliares endodônticas (Hipoclorito de Sódio 5,25%, Gluconato de Clorexidina 2%, EDTA 17% e ácido fosfórico 37%). Para avaliar o selamento, foram utilizadas raízes palatinas de molares superiores divididas em 18 grupos (n=10) que foram tratadas com diferentes substâncias químicas, obturadas com cimento endodôntico AH Plus associado a cones resinosos ou a cones de guta-percha. Em alguns grupos obturados com AH Plus + cones resinosos, a dentina foi hibridizada antes da aplicação do material obturador. O selamento coronário foi avaliado pelo método de filtração de fluidos. Um espécime de cada grupo foi levado ao MEV para avaliação morfológica da interface de união entre os materiais obturadores e a dentina radicular. Para a avaliação da resistência de união do cimento à dentina radicular foram utilizadas 60 raízes de dentes bovinos, cortadas longitudinalmente, que receberam tratamento com as substâncias químicas auxiliares utilizadas na avaliação do selamento (n=5). Foram criadas seis perfurações nas raízes selecionadas, duas por terço, onde foi inserido o cimento AH Plus, após o tratamento da dentina com o sistema adesivo SBMP. Após a presa do cimento, os corpos-de-prova foram submetidos ao teste de resistência ao cisalhamento por extrusão ?Push out?. Posteriormente, o modo de fratura foi analisado em lupa estereoscópica 32X. Um espécime de cada grupo foi avaliado no MEV para confirmação das análises feitas pela lupa. A análise do modo de fratura demonstrou (22,77%) fraturas adesivas, (11,67%) fraturas coesivas em cimento e (65,55%) fraturas mistas para o protocolo SBMP/ AH Plus, enquanto que para o AH Plus a distribuição foi (86,11%) coesivas em cimento e (13,89%) mistas. A análise estatística (Dixon-Grubbs-Neuman, Kolmogorov-Smirnov, Cochran e Tukey HSD) demonstrou que o selamento coronário, após a hibridização dentinária com o SBMP e obturação com cone Resinoso + AH Plus, foi superior ao promovido pela guta-percha associada ao AH Plus, para todos os protocolos de irrigação (p ? 0,05). Para a resistência de união, a aplicação do SBMP se mostrou desfavorável, pois diminuiu a resistência de união do AH Plus (p ? 0,05). As substâncias químicas agiram diferentemente sobre a resistência de união nos grupos onde foi aplicado o adesivo, sendo observado que o tratamento dentinário com clorexidina e soro apresentou melhores valores de resistência quando foram associados ao condicionamento dentinário com EDTA 17%, diferentemente do que ocorreu nos grupos onde se aplicou hipoclorito de sódio 5,25% que apresentou melhores resultados com a utilização do ácido fosfórico 37%. Houve correlação inversa entre resistência de união e capacidade de selamento. Pode-se concluir que o uso do sistema adesivo Scotchbond Multi Purpose melhorou a capacidade de selamento coronário do AH Plus para todos os protocolos de irrigação utilizados, e que a resistência de união deste cimento foi diminuída quando o adesivo foi aplicado, sendo influenciada pelo tipo de condicionamento e substâncias químicas
Abstract: The aim of this in vitro study was to evaluate the sealing ability and bond strength of AH Plus sealer associated with a hybridization protocol of root dentin with ScotchbondMulti Purpose (SBMP) after the use to different endodontic auxiliary chemical substances (5.25% sodium hypochlorite and 2% Chlorhexidine and 17 EDTA) in One hundred-eighty palatal roots of maxillary molars were selected and divided into 18 groups according to the dentin protocol treatment (n=10), filled with AH Plus sealer associated with resinous cones or gutta-percha in order to evaluate the sealing ability by fluid filtration (FLODEC system). In s groups that were used in the AH Plus + resinous cones, was hybridized dentin before applying the sealing material. One specime from each group was taken to a SEM morphology analysis of the bonded interfaces between sealers and dentin. For the bond strength test, 60 root bovine teeth were selected and treated with each auxiliary chemical substances selected (n=5). Six holes were poked in each root, being two in the cervical, middle and apical third of the root. The roles were filled with AH Plus sealer with or without the adhesive system, and subsequently, submitted to push out test. Thereafter, the fracture mode was examined using stereomicroscope (x32). One specimen from each was SEM analyzed. The fracture mode methodology revealed a 22.77% of adhesive, 11.67% of cohesive and 65.55% of mixture fracture for the SBMP / AH Plus protocol. In contrast, the AH Plus protocol indicated 86.11% of cohesive and 13.89% of mixed fracture. Statistical analysis (Dixon-Grubs-Neuman, Kolmogorov-Smirnov, Cochran and Tukey HSD) showed that the ScotchBond Multi Purpose (SBMP) + Resilon cone + AH Plus sealer group promoted a higher sealing ability than the gutta-percha + AH Plus sealer group (p < 0.05), regardless the auxiliary chemical substance. The bond strength were lower with the SBMP application than without its use (p<0.05). The chemicals acted differently on the bond strength in groups where the adhesive was applied, we observed that the dentin treatment with chlorhexidine and serum values showed better resistance when they were associated with dentin conditioning with 17% EDTA, unlike what occurred in the groups where sodium hypochlorite is applied, that it was found better results with the use of phosphoric acid 37%. A reverse correlation was found between bond strength and sealing ability. Was concluded that the use of adhesive system Scotchbond Multi Purpose improved coronal sealing ability of AH Plus for all protocols used irrigation, and that the bond strength of cement was reduced when the adhesive was applied, being influenced by type conditioning and chemicals substances.
Mestrado
Endodontia
Mestre em Clínica Odontológica
4
Silva, Emmanuel João Nogueira Leal da 1985. "Evaluation of cytotoxicity and physicochemical properties of calcium silicate-based endodontic sealer - MTA Fillapex = Avaliação das propriedades físico-químicas e biológicas de um cimento endodôntico a base de silicato de cálcio ¿ MTA Fillapex." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/289746.
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Orientador: Alexandre Augusto ZaiaTese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
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Resumo: O cimento endodôntico obturador MTA Fillapex® foi criado numa tentativa de aliar as propriedades físico-químicas e a capacidade seladora dos cimentos resinosos às excelentes propriedades biológicas do agregado trióxido mineral (MTA). Entretanto, ainda existe uma escassez de trabalhos na literatura avaliando as suas características físico-químicas e biológicas. Dessa forma, os objetivos deste estudo foram: 1) avaliar propriedades físico-químicas (radiopacidade, escoamento e pH) e biológicas (citotoxicidade) do cimento endodôntico MTA Fillapex e comparar com o cimento AH Plus, 2) realizar um acompanhamento em longo prazo do efeito citotóxico em fibroblastos 3T3 de diferentes cimentos endodônticos contemporâneos, e 3) avaliarem a partir de um ensaio multiparamétrico em longo prazo os efeitos citotóxicos do MTA Fillapex e do AH Plus em uma cultura primária de osteoblastos humanos. Os resultados do estudo mostraram que embora o AH Plus tenha apresentado radiopacidade estatisticamente maior que o MTA Fillapex (P<0.05), ambos os cimentos obtiveram os valores mínimos exigidos pela ISO 6876/2001. O MTA Fillapex apresentou um pH alcalino em todos os períodos experimentais, enquanto o AH Plus demonstrou um pH ligeiramente neutro, com diferenças estatisticamente significantes entre os cimentos (P<0.05). Com relação ao escoamento, ambos os cimentos apresentaram os valores mínimos exigidos pela ISO 6876/2001, no entanto o AH Plus apresentou valor estatisticamente mais baixo do que o do MTA Fillapex (P<0.05). Com relação à citotoxicidade, em todos os períodos testados o MTA Fillapex foi mais citotóxico do que o AH Plus (P<0.05). Quando comparado com diversos cimentos endodônticos, novamente o MTA Fillapex apresentou os maiores valores de citotoxicidade (P<0.05), permanecendo moderadamente citotóxico mesmo após 5 semanas de sua manipulação. Quando testados em um ensaio multiparamétrico utilizando culturas de osteoblastos humanos, ambos os cimentos foram citotóxicos sem apresentar nenhuma diferença significativa quando testados imediatamente após a manipulação (P>0.05). No entanto, uma semana após sua manipulação o AH Plus se tornou não citotóxico em todos os parâmetros avaliados. Por outro lado, o MTA Fillapex permaneceu citotóxico durante todo o período experimental, mostrando diferenças estatisticamente significantes quando comparados com o AH Plus (P<0.05). Dentro da metodologia empregada e de acordo com os resultados apresentados, pode-se concluir que embora o MTA Fillapex tenha apresentado propriedades físico-químicas adequadas para a utilização na terapia endodôntica, o mesmo apresentou-se altamente citotóxico nas diversas condições testadas
Abstract: The endodontic sealer MTA Fillapex® was developed in an attempt to combine the physicochemical properties and sealing capacity of resin-based cements to the excellent biological properties of mineral trioxide aggregate (MTA). However, little information exists regarding MTA Fillapex physicochemical properties. Thus, the aims of the present study were: 1) evaluate the physicochemical (radiopacity, flow and pH) and biological (cytotoxicity) properties of MTA Fillapex and compare it with AH Plus, 2) investigate MTA Fillapex effects on the cytotoxicity during a period of 5 weeks in 3T3 fibroblasts and compare with 7 different endodontic sealers, and 3) verify, through a multiparametric in vitro assay, the long term cytotoxic effects in human osteoblasts of the MTA Fillapex and compare it with AH Plus. The results of the study showed that although AH Plus presented higher radiopacity than MTA Fillapex (P<0.05), both sealers showed ISO 6876/2001 minimum required values. MTA Fillapex presented alkaline pH in all experimental times, while AH Plus demonstrated slightly neutral pH (P<0.05). Both sealers showed ISO 6876/2001 required values for flow, however AH Plus flow was significantly lower than that of MTA Fillapex (P<0.05). In all tested periods, MTA Fillapex was more cytotoxic than AH Plus (P < .05). When compared to 7 different endodontic sealers, MTA Fillapex was associated with significantly less cell viability (P<0.05) even after 5 weeks of manipulation. When tested in a muliparametric assay using human osteoblasts, no significant difference was found among the materials when fresh mixed (p>0.05). After one week AH Plus become noncytotoxic, on all three parameters evaluated. Conversely, MTA Fillapex remained cytotoxic over the entire experimental period, showing significantly differences when compared to AH Plus (P<0.05). Within the employed methodology and according to the results can be concluded that although MTA Fillapex showed suitable physicochemical properties for use in endodontic therapy, it appeared highly cytotoxic in the different tested conditions
Doutorado
Endodontia
Doutor em Clínica Odontológica
5
Navarro, Luciana Guilherme. "Avaliação das propriedades físico-químicas, citotoxicidade, bioatividade e atividade antimicrobiana de novos cimentos obturadores /." Araraquara, 2018. http://hdl.handle.net/11449/153652.
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Orientador: Juliane Maria Guerreiro TanomaruResumo: Cimentos endodônticos devem apresentar propriedades físico-químicas e biológicas adequadas. Publicação 1- Avaliação da citotoxicidade, bioatividade celular, potencial bioativo e atividade antimicrobiana dos cimentos GuttaFlow bioseal (GFB) e TotalFill BC (TF), comparados ao AH Plus (AHP). A citotoxicidade e bioatividade celular (Saos-2) foram avaliadas por meio dos ensaios de metil tetrazólio (MTT), vermelho neutro (VN), atividade da fosfatase alcalina (ALP) e vermelho de alizarina (ARS). O potencial bioativo foi avaliado em microscopia eletrônica de varredura (MEV). Para avaliação da eficácia antimicrobiana sobre Enterococcus faecalis e/ou Candida albicans foram realizados os testes de contato direto sobre células planctônicas ou biofilme. Dados da viabilidade celular e atividade de ALP foram submetidos aos testes two-way ANOVA e Bonferroni post-test. ANOVA e Tukey foram usados para análise do ARS e da atividade antimicrobiana (α=0,05). GFB e TF não mostraram efeitos citotóxicos. GFB mostrou maior atividade de ALP aos 7 dias e foi efetivo sobre biofilme de C. albicans e dual-espécies. TF induziu maior deposição de nódulos mineralizados no ensaio ARS, mostrou maior potencial bioativo em MEV e maior atividade antimicrobiana sobre células planctônicas e biofilme de E. faecalis. Publicação 2- Avaliação dos cimentos NeoMTA Plus (NMTAP) e MTA Fillapex (MTAF) em comparação ao AHP. Foram avaliadas as propriedades de alteração volumétrica (AV), citotoxicidade, bioatividade celular, p... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: Endodontic sealers have to show adequate physico-chemical and biological properties. Publication 1- aims to evaluate the cytotoxicity, cell bioactivity, bioactive potential and antimicrobial activity of GuttaFlow bioseal (GFB) and TotalFill BC (TF), compared to AH Plus sealer (AHP). Cytotoxicity and cell bioactivity (Saos-2) were evaluated by methyl tetrazolium (MTT), neutral red (VN), alkaline phosphatase (ALP) and alizarin red (ARS) assays. The bioactive potential was evaluated by scanning electron microscopy (SEM). To evaluate the antimicrobial and/or antibiofilm efficacy against Enterococcus faecalis and Candida albicans were realized direct contact test on planktonic cells or biofilm. Cell viability data and ALP activity were submitted to two-way ANOVA and Bonferroni post-test. ANOVA and Tukey were used for ARS analysis (α=0.05). GFB and TF showed no cytotoxic effects. GFB showed higher ALP activity at 7 days and was effective against biofilms of C. albicans and dual-species. TF induced higher deposition of mineralized nodules with ARS assay and higher bioactive potential in SEM and higher antimicrobial activity on planktonic cells and biofilm of E. faecalis. Publication 2- aims to evaluate the MTA Fillapex (MTAF) and NeoMTA Plus (NMTAP) sealers in comparison to the AHP. The physicochemical properties, volumetric alteration (VA), cytotoxicity, cell bioactivity, bioactive potential and antimicrobial activity were evaluated. Setting time (ST) and flow were evaluated accord... (Complete abstract click electronic access below)
Mestre
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Alhaddad, Khalifa W. "Impact on Bacterial Micro-leakage in Exposed Root Canal Obturation Material in Teeth Irrigated with Different Solutions." VCU Scholars Compass, 2019. https://scholarscompass.vcu.edu/etd/5762.
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Purpose: Determine the timeframe of bacterial penetration that occurs to the apex when obturation material (gutta percha) is exposed to bacteria for a set period of time (45 days) and to determine if bacterial penetration of the obturated root is influenced by the type of irrigant used during the final rinse (17% EDTA vs 2% Chlorhexidine vs full strength 5.25% NaOCl). Methods: Thirty-six extracted teeth, including six controls, were instrumented and irrigated with 5.25% NaOCl followed by a final rinse of either: 17% EDTA, 2% Chlorhexidine, or 5.25% NaOCl, and then obturated. Each root was suspended between two chambers: the coronal chamber inoculated with brain heart infusion broth and 〖10〗^8 colony-forming units of Enterococcus faecalis, the apical chamber with brain heart infusion broth. The latter was checked daily for turbidity, indicating bacterial leakage. Results: After excluding teeth with clear indications of experimental failure, 21 teeth were included in the analysis. Leakage rates were not significantly difference across the three groups (Chlorhexidine: 14%, EDTA: 67%, NaOCl: 50%; p-value=0.1581). Time to leakage was not significantly difference across the three groups (p-value=0.2470). Conclusion: Within the limitations of this study it was shown that leakage occurs between 4-42 days and that there was no significant difference between the different solutions in preventing leakage.
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Minotti, Paloma Gagliardi. "Determinação do pH e da liberação de íons cálcio de três cimentos endodônticos quando utilizados em obturações, em conjunto com guta-percha, e da qualidade das mesmas. Avaliação realizada em longo prazo." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/25/25147/tde-28102015-094819/.
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O objetivo deste estudo foi avaliar o pH e a liberação de íons cálcio dos cimentos AH Plus, MTA Fillapex e Sealapex, em diferentes períodos, quando empregados em obturações de canais radiculares, bem como, a qualidade das obturações, após 1 ano de realizadas. O pH e a liberação de íons cálcio foram avaliados por meio de um peagômetro e espectrofotômetro de absorção atômica, respectivamente. A qualidade das obturações foi avaliada por meio de um estereomicroscópio. Cento e vinte e quatro pré-molares inferiores humanos extraídos, unirradiculados, foram divididos em 01 grupo controle e 02 grupos experimentais, de acordo com a padronização do diâmetro do forame apical. Em seguida, os 02 grupos experimentais foram divididos em 4 subgrupos, considerando as técnicas de instrumentação e obturação empregadas. Após o preparo dos canais radiculares cada subgrupo teve o número de dentes divididos por dois, formando novos subgrupos, de acordo com os cimentos obturadores utilizados. Imediatamente após a obturação, a raiz de cada dente foi imersa em 15 mL de água ultrapura para avaliação do pH e liberação de íons cálcio nos seguintes períodos: 1 h, 1, 3, 7, 30, 180 e 365 dias, após a obturação. Após o período de 1 ano, os dentes foram seccionados transversalmente a 2, 4, 6 mm do forame apical para análise da qualidade das obturações, analisando-se a porcentagem de cimento, guta-percha e espaços vazios na massa obturadora. Os cimentos apresentaram pH neutro, porém, aos 180 dias, os valores mostraram um ligeiro aumento quando utilizados em canais com forames de diâmetro 0,25 mm. Quando utilizados em canais com forames de diâmetro 0,45 mm, o pH mostrou-se com valores maiores para todos os períodos sem distinção do cimento. Todos os cimentos liberaram íons cálcio, com menores valores para o AH Plus. Na estereomicroscopia, observaram-se variações nas porcentagens de cimento e guta-percha, considerando-se os diâmetros foraminais e técnicas obturadoras, e porcentagem insignificante de espaços vazios.The objective of this study was to evaluate the pH and calcium ion release of AH Plus, MTA Fillapex and Sealapex cements at different time periods when used in root canal obturations, as well as the quality of the obturations one year after being performed. The pH and calcium ion release were evaluated by means of a pH meter and an atomic absorption spectrophotometer, respectively. The quality of the obturations was evaluated using a stereomicroscope. One hundred and twenty-four extracted human uniradicular mandibular premolars were divided into 1 control and 2 experimental groups, according to the standardization of the apical foramen diameter. Next, the 2 experimental groups were divided into 4 subgroups, considering the instrumentation techniques and obturations employed. After the preparation of the root canals, each subgroup had the number of teeth divided by two, forming new subgroups, according to the sealers used. Immediately after the obturation, the root of each tooth was immersed in 15 mL of ultrapure water for the evaluation of the pH and calcium ion release in the following time periods: 1 hr, 1, 3, 7, 30, 180 and 365 days after the obturation. After the period of one year, the teeth were transversely sectioned at 2, 4 and 6 mm from the root apex to examine the quality of the obturations, analyzing the percentage of cement, gutta-percha and voids in the obturator mass. The cements presented a neutral pH, which showed slightly increase as of 180 days when used in canals with foramens of 0.25 mm diameters. When used in canals with foramens with diameters of 0.45 mm, the pH presented higher values in all periods for all cements. All cements released calcium ions, with lower values for the AH Plus. In the stereomicroscopy, there were variations in the percentages of cement and gutta-percha, considering the foraminal diameters and obturation techniques and an insignificant percentage of voids.
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Gibby, Stuart Grant Walker Mary P. "Effect of residual moisture on the quality of resin/dentin interface for an epoxy-resin endodontic sealer." Diss., UMK access, 2008.
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Thesis (M.S.)--School of Dentistry. University of Missouri--Kansas City, 2008."A thesis in oral biology." Advisor: Mary P. Walker. Typescript. Vita. Title from "catalog record" of the print edition Description based on contents viewed Aug. 07, 2009. Includes bibliographical references (leaves 39-45). Online version of the print edition.
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Carlik, Jaime. "Influência do tratamento da dentina radicular com três substâncias irrigadoras ácidas no vedamento marginal apical de obturações endodônticas." Universidade de São Paulo, 2000. http://www.teses.usp.br/teses/disponiveis/23/23135/tde-21052001-090738/.
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Analisou-se a influência da aplicação do ácido cítrico em três concentrações, EDTA-T e EDTA-C no vedamento marginal apical de canais radiculares em 90 caninos humanos extraídos. O preparo químico-cirúrgico dos canais radiculares foi realizado pela técnica de Paiva & Antoniazzi, sendo esses dentes posteriormente distribuídos aleatoriamente em seis grupos. Cada grupo de dentes recebeu um tratamento químico específico efetuado pela repleção do canal radicular por 3 minutos com uma das seguintes substâncias: soro fisiológico, ácido cítrico a 10%, ácido cítrico a 15%, ácido cítrico a 20%, EDTA-T a 17% e EDTA-C a 17%. Posteriormente, todos os canais radiculares foram obturados com cones de guta-percha e cimento N-Rickert pela técnica de cones múltiplos com condensação vertical. Foi observado um aumento crescente de infiltração do corante azul-de-metileno nos canais tratados com ácido cítrico correspondente ao aumento da concentração do ácido. A maior média de infiltração verificada ocorreu nos canais radiculares tratados com EDTA-C e as menores registradas naqueles tratados com soro fisiológico ou EDTA-T. As diferenças entre as médias de infiltração apical nos seis grupos experimentais, analisadas conjuntamente, não foram estatisticamente significantes. Em comparações individualizadas, houve diferença significante (p < 0,05) entre o grupo G6 (EDTA-C) tanto em relação ao grupo G5 (EDTA-T) quanto ao grupo G1 (soro fisiológico).Ninety extracted human teeth were analysed in this work to verify the influence of citric acid application under three concentrations, EDTA-T and EDTA-C in the apical marginal sealing of root canals. Chemical and surgical root canal preparations were performed by Paiva & Antoniazzi technique, being these teeth randomly distributed in six groups. Each group had specific chemical treatment of filling the root canal for 3 minutes with one of the following substances: saline solution, 10% citric acid, 15% citric acid, 20% citric acid, 17% EDTA-T and 17% EDTA-C. All root canals were filled with gutta-percha cones and N-Rickert cement by the multiple cone technique with vertical condensation. A crescent increase of methylene blue dye penetration could be observed in the root canals treated with citric acid equivalent to the increase in acid concentration. The highest penetration mean was shown in the root canals treated with EDTA-C and the lowest in those treated wint saline solution or EDTA-T. The differences between the apical penetration means in the six experimental groups that had been together analysed showed no statistical significance. When individually compared, there was a significant difference (p<0,05) between group G6 (EDTA-C), group G5 (EDTA-T) and group G1 (saline solution).
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Van, der Merwe Carel. "In vitro evaluation of root canals obturated with four different techniques." Diss., Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-01252010-105530/.
Full textBooks on the topic "Endodontics Root Canal Obturation"
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Mahmoud, Torabinejad, ed. Principles and practice of endodontics. 2nd ed. Philadelphia: W.B. Saunders, 1996.
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Mahmoud, Torabinejad, ed. Principles and practice of endodontics. Philadelphia: Saunders, 1989.
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Advanced endodontics: Clinical retreatment and surgery. London: Taylor & Francis, 2006.
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Problems in endodontics: Etiology, diagnosis, and treatment. London: Quintessence, 2009.
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Robert, Loushine, ed. A clinical atlas of endodontic surgery. Chicago: Quintessence Pub. Co., 1991.
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Leonardo, Mario Roberto. Endodoncia: Tratamiento de conductos radiculares : principios técnicos y biológicos. São Paulo: Artes Médicas, 2005.
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Piacine, Mark J. 35 years of Sargenti endodontics in America, 1958-1993. Fullerton, Calif: American Endodontic Society, 1994.
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Gutmann, James L. Problem solving in endodontics: Prevention, identification, and management. 5th ed. Maryland Heights, Mo: Elsevier/Mosby, 2011.
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Lumley, Philip. Practical clinical endodontics. Edinburg: Elsevier/Churchill Livingstone, 2006.
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E, Walton Richard. Endodontics: Principles and practice. 4th ed. St. Louis, Mo: Saunders/Elsevier, 2009.
Find full textBook chapters on the topic "Endodontics Root Canal Obturation"
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Patel, Bobby. "Root Canal Obturation." In Endodontic Treatment, Retreatment, and Surgery, 147–90. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-19476-9_7.
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Murray, Peter. "Root Canal Obturation." In A Concise Guide to Endodontic Procedures, 163–76. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-662-43730-8_8.
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Drukteinis, Saulius. "Bioceramic Materials for Root Canal Obturation." In Bioceramic Materials in Clinical Endodontics, 39–58. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58170-1_5.
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Ørstavik, Dag. "Obturation of Root Canals." In Endodontic Prognosis, 141–59. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42412-5_9.
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Bogen, George, Ingrid Lawaty, and Nicholas Chandler. "MTA Root Canal Obturation." In Mineral Trioxide Aggregate, 207–49. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118892435.ch8.
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Alshahrani, Mohammed, Roberto DiVito, and Enrico E. DiVito. "Root Canal Catheterization." In Lasers in Endodontics, 37–44. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-19327-4_2.
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Jain, Priyanka, Mahantesh Yeli, and Kakul Dhingra. "Root canal filling." In Current Therapy in Endodontics, 111–40. Hoboken, New Jersey: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119067757.ch5.
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Paqué, Frank. "Molar Root Canal Anatomy." In The Guidebook to Molar Endodontics, 1–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-52901-0_1.
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Berutti, Elio, and Arnaldo Castellucci. "Nonsurgical Root Canal Retreatment." In The Guidebook to Molar Endodontics, 233–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-52901-0_9.
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Castellucci, Arnaldo. "Internal Tooth Anatomy and Root Canal Obturation." In The Root Canal Anatomy in Permanent Dentition, 323–41. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73444-6_12.
Full textConference papers on the topic "Endodontics Root Canal Obturation"
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Zhu, L., M. Salloum, S. Feteih, J. Hough, D. Arola, and M. Tolba. "Experimental Study of Temperature Elevations in Extracted Teeth Using a System B Heating Catheter for Bacterial Disinfection." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19125.
Full textAbstract:
Total bacterial disinfection and elimination from the human root canal system are crucial in clinical endodontic procedures [Card et al., 2002; Kakoli et al., 2009]. The current approaches relying on mechanical instrumentation and root canal irrigation and medicaments have demonstrated that eradication of bacteria occurs when the bacteria are in direct contact with the medicaments. However, persistent infection following routine treatments has suggested that bacteria may harbor in the root canal anatomical irregularities and/or deep dentinal tubules, therefore, surface irrigation of medicaments may not be able to reach those regions. Heat treatment has been used for obturation of the root canal in endodontic practice. In this study we hypothesize that as an alternative, surface heating using a System B heating catheter through the root canal surface would be effective for bacterial elimination in the deep dentin. The heat-induced cytotoxic response kills bacteria in the root dentin via heat conduction from the thermal energy incident on the root canal wall. In principle, a high power setting and/or a long heating duration can always achieve sufficient temperature elevations in deep dentin. Yet, the detailed temperature distribution inside the dentin and possible thermal damage to the supporting periodontium are unknown. Therefore, it is of clinical importance to perform and investigate temperature elevations in dentin to provide clinicians with an optimized and effective treatment protocol to minimize unnecessary thermal damage to the surrounding structure.
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Ghorpade, Ratnakar, Kalyana Sundaram, and Vivek Hegde. "Mechanical factors influencing success in root canal obturation." In 2017 2nd International Conference for Convergence in Technology (I2CT). IEEE, 2017. http://dx.doi.org/10.1109/i2ct.2017.8226295.
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Lupato Conrado, Luis A., Iris M. Frois, Renato Amaro Zangaro, Egberto Munin, Carlos Kuranaga, Marcos Dias da Silva, Maria do Carmo de Andrade Nono, and Mirabel Cerquiera Rezende. "Quality improvement of photopolimerizable-cement root canal obturation." In Biomedical Optics 2003, edited by Peter Rechmann, Daniel Fried, and Thomas Hennig. SPIE, 2003. http://dx.doi.org/10.1117/12.476496.
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Min Li and Yun-Hui Liu. "A virtual endodontics testbed for training root canal skills." In IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004. IEEE, 2004. http://dx.doi.org/10.1109/robot.2004.1307254.
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Goodis, Harold E., Joel M. White, Sally J. Marshall, Grayson W. Marshall, and Emrey Moskowitz. "Root canal preparation in endodontics: conventional versus laser methods." In OE/LASE '92, edited by R. R. Anderson. SPIE, 1992. http://dx.doi.org/10.1117/12.137373.
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Orel, Laura, Simona Puscu, Meda Lavinia Negrutiu, Cosmin Sinescu, Adrian Gh Podoleanu, Luminita Nica, and Lina Abuabboud. "Modern evaluation of the quality of the techniques of root canal dental obturation." In Seventh International Conference on Lasers in Medicine, edited by Carmen Todea, Adrian Podoleanu, and Virgil-Florin Duma. SPIE, 2018. http://dx.doi.org/10.1117/12.2286452.
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Hedayat, Assem, and Pengyu Wu. "EndoCal 10 Obturation Voids in Root Canal and Isthmus of a Human Premolar: A Synchrotron micro-CT Imaging Study." In 5th International Conference on Bioimaging. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0006582900430049.
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