Cimentos Portland aditivados para reparação de perfurações radiculares em cães
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Data
2010-08-25
Autores
Silva Neto, José Dias da [UNIFESP]
Orientadores
Duailibi, Silvio Eduardo [UNIFESP]
Tipo
Tese de doutorado
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Introdução: As perfurações radiculares são acidentes na endodôntia. O tratamento consiste na obturação. O sulfato de cálcio é recomendado como anteparo ao cimento. O agregado de trióxido mineral (MTA) é o cimento mais adequado para obturação de perfurações. O cimento Portland comum tem a mesma constituição química e características estruturais do MTA, incluindo baixa resistência à compressão. Objetivo: Avaliação histológica de perfurações tratadas com MTA e cimentos Portland aditivados com barreira de sulfato de calcio. Métodos: Amostra: oitenta pré-molares, quatro da arcada dentária superior e quatro da arcada inferior de 10 cães machos, sem raça definida, com idade em torno de um a um ano e meio, pesando entre 10 e 15 kg. Após tratamento endodôntico foram realizadas perfurações nas furcas com broca 1016 HL e barreira com sulfato de cálcio. A distribuição dos cimentos nas obturações foi por randomização. MTA Angelus ® (controle), Portland tipo II, Portland tipoV e Portland branco estrutural. Os dentes foram restaurados com resina composta. Após 120 dias de confinamento realizou-se eutanásia e análise histológica. Resultados: Os cimentos CPII, CPV, CPB e MTA não têm significância estatística quanto à neoformação óssea. Conclusão: A análise histológica determinou: adjacente a todos os cimentos houve formação de osso.
Introduction: The Root perforations are accidents in endodontics. Treatment consists of filling. Calcium sulfate is recommended as a barrier for cement. The mineral trioxide aggregate (MTA) cement is the most suitable for filling perforations. The ordinary Portland cement has the same chemical composition and structural characteristics of the MTA, including low resistance to compression. Purpose: Histological evaluation of perforations treated with MTA and Portland cement containing additives with calcium sulfate barrier. Methods: Sample: eight premolars, four of the top teeth and four lower teeth of 10 male dogs, mixed breed, aged around a year and a half, weighing between 10 and 15 kg. After endodontic treatment the furcation perforations were made with drill HL 1016 and barrier of calcium sulfate. The distribution of cements at the fillings was by randomization. MTA Angelus ® (control), type II Portland, type V and Portland white structural. The teeth were restored with composite resin. After 120 days of confinement was carried out euthanasia and histologic analysis. Results: The cement CPII, CPV, CPI and MTA have no statistical significance regarding new bone formation. Conclusion: Histological analysis determined: adjacent to all sealers there was bone formation.
Introduction: The Root perforations are accidents in endodontics. Treatment consists of filling. Calcium sulfate is recommended as a barrier for cement. The mineral trioxide aggregate (MTA) cement is the most suitable for filling perforations. The ordinary Portland cement has the same chemical composition and structural characteristics of the MTA, including low resistance to compression. Purpose: Histological evaluation of perforations treated with MTA and Portland cement containing additives with calcium sulfate barrier. Methods: Sample: eight premolars, four of the top teeth and four lower teeth of 10 male dogs, mixed breed, aged around a year and a half, weighing between 10 and 15 kg. After endodontic treatment the furcation perforations were made with drill HL 1016 and barrier of calcium sulfate. The distribution of cements at the fillings was by randomization. MTA Angelus ® (control), type II Portland, type V and Portland white structural. The teeth were restored with composite resin. After 120 days of confinement was carried out euthanasia and histologic analysis. Results: The cement CPII, CPV, CPI and MTA have no statistical significance regarding new bone formation. Conclusion: Histological analysis determined: adjacent to all sealers there was bone formation.
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SILVA NETO, José Dias da. Cimentos Portland aditivados para reparação de perfurações radiculares em cães. 2010. 174 f. Tese (Doutorado) - Universidade Federal de São Paulo (UNIFESP), São Paulo, 2010.