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Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial
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Inicio Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial Estudo Comparativo da Infiltração Apical entre Dois Cimentos Endodônticos
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Vol. 50. Issue 4.
Pages 205-211 (October - December 2009)
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Vol. 50. Issue 4.
Pages 205-211 (October - December 2009)
Investigação
Open Access
Estudo Comparativo da Infiltração Apical entre Dois Cimentos Endodônticos
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Márcia Costa*, Leopoldo Forner**, Rui Madureira***
* Médica dentista, Assistente estagiária do Departamento de Ciências Dentárias do Instituto Superior de Ciências da Saúde- Norte, Aluna de doutoramento na Universidade de Valência- Espanha
** Médico dentista, Professor Titular do Departamento de Estomatologia na Universidade de Valência- Espanha
*** Médico dentista, Professor Auxiliar do Departamento de Ciências Dentárias do Instituto Superior de Ciências da Saúde- Norte
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Resumo

O objectivo deste estudo é comparar a capacidade de selamento apical de dois cimentos endodônticos. Foram utilizados trinta e oito dentes monorradiculares e divididos em dois grupos de 15 elementos, de acordo com o cimento utilizado (Grupo A: AH Plus e Grupo B: Tubli-Seal). Foram utilizados oito dentes nos grupos controlo positivo e negativo que não foram obturados (Grupo C). Os canais foram instrumentados pela técnica de crown-down, utilizando as limas Hero Shaper® and Hero 642® (Micro-Mega S.A., Besançon, France) e irrigados com hipoclorito de sódio a 5,25% entre cada instrumento. O smear layer foi removido utilizando 3ml de EDTA a 17% no final da instrumentação durante 3 minutos, seguido novamente de hipoclorito de sódio a 5,25%. Os grupos A e B foram obturados pela técnica de condensação lateral. Todos os dentes, excepto o controlo negativo, foram cobertos com cianocrilato seguido de verniz das unhas excepto 2mm do foramen apical. O controlo negativo foi totalmente impermeabilizado. Toda a amostra foi imersa em nitrato de prata a 50%. Foram efectuados cortes transversais de cada dente e analisados. Os resultados obtidos foram submetidos a uma análise estatística utilizando o programa SPSS® v.14.0 (Statistical Package for the Social Sciences). Não houve diferenças estatisticamente significativas entre os dois cimentos estudados (p>0.05).

Palavras-chave:
Materiais de obturação endodônticos
Infiltração apical
Tubli-Seal
AH Plus
Abstract

The purpose of this study was to compare the apical sealing ability of two root canal sealers. Thirty-eight human single root teeth were used and divided into two groups of 15 elements according to the root canal sealer used for obturation (Group A:AH Plus and Group B:Tubli-Seal). Eight teeth were used as positive and negative controls and were not filled (Group C). The canals were instrumented by a crown-down technique, using a set of Hero Shaper® and Hero 642® (Micro- Mega S.A., Besançon, France). Canals were irrigated with a 5,25% sodium hypochlorite solution between each instrument and smear layer was removed by applying 3ml of 17% EDTA in the end of instrumentation for 3 minutes, followed again by 5,25% sodium hypochlorite. Groups A and B were filled by lateral condensation. All teeth, except the negative control, were covered with cyanoacrylate followed by nail varnish up to 2mm from the apical foramen. Negative control was totality impermeabilized. All specimens were immersed in 50% silver nitrate dye. Transverse sections cut of each root were done and analysed. The obtained results were submitted for statistical analysis SPSS® v.14.0. There were no statistically significant differences between the two endodontic sealers (p>0.05).

Key-words:
Endodontic filling materials
Apical leakage
Tubli-Seal
AH Plus
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(Costa M, Forner L, Madureira R. Estudo Comparativo da Infiltração Apical entre Dois Cimentos Endodônticos. Rev Port Estomatol Cir Maxilofac 2009;50:205–211)

Copyright © 2009. Sociedade Portuguesa de Estomatologia e Medicina Dentária
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