Influence of the sealer and a plug in coronal leakage after post space preparation

• Autor(a) principal: Holland, Roberto [UNESP]
• Data de Publicação: 2004
• Outros Autores: Murata, Sueli Satomi [UNESP], Silva, Monica Nunes Da, Dezan Junior, Eloi [UNESP], Souza, Valdir De [UNESP], Bernabé, Pedro Felício Estrada [UNESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/S1678-77572004000300012; http://hdl.handle.net/11449/213056
• topic: Coronary leakage; Endofill; CRCS; Plug; Post space preparation; Infiltração coronária; Endofill; CRCS; Plug; Preparo para pino

The subject of this paper was to conduct an in vitro study of the coronal leakage after root canal filling and post space preparation. One hundred single-rooted human teeth had their crowns removed and the canals prepared and filled by the lateral condensation technique with gutta-percha points and the sealers CRCS and Endofill (a Grossman cement). After post space preparation, the remainder of the filling was protected or not with 1mm of a plug of the following materials: Coltosol, Super Bonder (cyanoacrylate-ester), CRCS and Endofill. After 24 hours in saline, the specimens were immersed in a 2% methylene blue solution in a vacuum environment for 24 hours. The teeth were then sectioned longitudinally, leakage was evaluated linearly and the obtained data were submitted to the Kruskal-Wallis test. The results with the two sealers studied were similar between themselves and worse (p<0.01) than the groups with a protector plug. The statistical analysis ordered the experimental groups from the best to the worst in the following way: a - Endofill-Super Bonder, CRCS-Super Bonder, CRCS-CRCS; b - Endofill-Endofill; c - Endofill-Coltosol, CRCS-Coltosol; d - Endofill, CRCS.