Avaliação da adesividade de seis cimentos obturadores dos canais radiculares através do teste de cisalhamento

• Autor(a) principal: Sotelo, Pablo Hugo de Oliveira
• Data de Publicação: 2006
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/14095
• topic: Adhesiveness; Cement; Bond strength; Adesividade; Cimento; Resistência de união; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA::ENDODONTIA

The purpose of the present study was to evaluate the bond strength of six root canal obturator cements, Acroseal, Endorez, Endofill, Intrafill and Sealer 26. For this purpose, 30 specimens were used, composed of 30 human teeth, upper molars and lower parts, where they were included in a ½ inch PVC pipe, 5 cm high, filled with acrylic resin, to fix the tooth and fill gaps between the tooth and the PVC tube. The specimens were occlusal sectioned through the Extec Labcut 1010 machine, obtaining a flat dentin surface that was prepared with No. 600 sandpaper and 17% EDTA, which was used for the placement of endodontic cement and cementation of a dentin. gutta percha square having a surface area diameter of 7X7mm, with a height of 1.5mm. Then the specimens were divided into 6 groups of 5 specimens, namely: G1: 5 teeth, dentin, Acroseal and gutta percha; G2: 5 teeth, dentin, CPM and gutta percha; G3: 5 teeth, dentin, endofill and gutta percha; G4: 5 teeth, dentin, endorez and gutta percha; G5: 5 teeth, dentin, Intrafill and gutta percha; G6: 5 teeth, dentin, Sealer 26 and gutta percha. The specimens were submitted to the mechanical shear test on the Emic DL500MF machine, with 500N load cell and 0.5mm / min speed. After reading the results, we performed the analysis using the Student-Newman-Keuls statistical method and, therefore, we can conclude that the Sealer 26 endodontic cement presented the best result.