RESUMO
Los autores revisan los artículos publicados en las revistas científicas más significativas en el ámbito de la endodoncia durante el año 2013, comparándolos entre ellos, con otros anteriores y con los conceptos clásicos de la endodoncia
The authors review the articles published in the most relevant journals concerning endodontics during the last year 2013, making a comparison between them, as well as with other older ones and with classic concepts in endodontics
Assuntos
Humanos , Endodontia/instrumentação , Cavidade Pulpar/patologia , Traumatismos Dentários , Preparações Farmacêuticas Odontológicas , Retratamento , Irrigação Terapêutica , Instrumentos OdontológicosRESUMO
OBJECTIVE: This study evaluated the response of apical and periapical tissues of dogs' teeth with pulp vitality after root canal filling with the endodontic sealers Sealapex Xpress and Real Seal XT. METHODS: Thirty-eight root canals with vital pulp from dogs' premolars were used. After instrumentation, the canals were filled with Sealapex Xpress and gutta-percha (group SX/GP, n = 16) or Real Seal XT and Resilon cones (group RS/R, n = 22). The animals were killed after 90 days, and the teeth with surrounding tissues were subjected to histotechnical processing. Hematoxylin-eosin-stained sections were examined by conventional light microscopy for a quantitative histopathologic analysis (sealing of apical opening by newly formed mineralized tissue [biological sealing], inflammatory cell infiltrate, root and bone tissue resorption), according to a scoring system. The subsequent sections were evaluated by immunohistochemistry for identification of mineralization markers (osteopontin, alkaline phosphatase, and RUNX2). Data were analyzed by nonparametric Mann-Whitney U test (α = 0.05). RESULTS: Complete biological sealing was observed in 50% and 22.7% of the specimens of groups SX/GP and RS/R, respectively. Partial biological sealing was observed in 25% and 54.6% and absence of sealing in 25% and 22.7% of the specimens of groups SX/GP and RS/R, respectively. There were no significant differences (P > .05) between the groups for the scores attributed to the histopathologic parameters. Positive staining for osteopontin, alkaline phosphatase, and RUNX2 was observed in both groups, especially in the periodontal ligament. CONCLUSIONS: Sealapex Xpress and RealSeal XT feature tissue compatibility in vivo and allow for sealing of apical opening by deposition of mineralized tissue.
Assuntos
Materiais Biocompatíveis/farmacologia , Hidróxido de Cálcio/farmacologia , Resinas Compostas/farmacologia , Tecido Periapical/efeitos dos fármacos , Materiais Restauradores do Canal Radicular/farmacologia , Salicilatos/farmacologia , Fosfatase Alcalina/análise , Perda do Osso Alveolar/patologia , Animais , Apexificação/métodos , Subunidade alfa 1 de Fator de Ligação ao Core/análise , Colagem Dentária/métodos , Cães , Guta-Percha/farmacologia , Inflamação/patologia , Osteopontina/análise , Ligamento Periodontal/efeitos dos fármacos , Obturação do Canal Radicular/métodos , Preparo de Canal Radicular/métodos , Reabsorção da Raiz/patologiaRESUMO
Los autores revisan los artículos publicados en las revistas científicas más significativas en el ámbito de la endodoncia durante el año 2012, comparándolos entre ellos, con otros anteriores y con los conceptos clásicos de la endodoncia (AU)
The authors review the articles published in the most relevant journals concerning endodontics during the last year 2012, making a comparison between them, as well as with other older ones and with classic concepts in endodontics (AU)
Assuntos
Humanos , Endodontia/tendências , Doenças Periodontais/epidemiologia , Índice Periodontal , Traumatismos Dentários/complicações , Materiais Restauradores do Canal Radicular/análise , Irrigantes do Canal Radicular/análise , Obturação do Canal Radicular/métodos , Tratamento do Canal Radicular/métodos , Preparo de Canal Radicular/métodosRESUMO
Los autores revisan los artículos publicados en las revistas científicas más significativas en el ámbito de la endodoncia durante el año 2011, comparándolos entre ellos, con otros anteriores y con los conceptos clásicos de la endodoncia (AU)
The authors review the articles published in the most relevant journals concerning endodontics during the last year 2011, making a comparison between them, as well as with other older ones and with classic concepts in endodontics (AU)
Assuntos
Humanos , Endodontia/tendências , Publicações Periódicas como AssuntoRESUMO
El auge de las técnicas mecánicas, mediante rotación continua, en la preparación del sistema de conductos radiculares obliga a realizar una serie de reflexiones respecto a las ventajas e inconvenientes de las mismas según los diferentes objetivos que se persiguen en esta fase de la terapéutica. Se describe el sistema de instrumentación HERO 642 comparado con otras marcas y se expone la técnica propugnada por los diseñadores, Vulcain JM y Calas P, junto con las modificaciones propuestas por los autores del artículo. Finalmente, se establecen unas premisas fundamentales para el correcto empleo de la instrumentación rotatoria como técnica habitual en el tratamiento de conductos radiculares, en comparación con otros sistemas (AU)
