Ação solvente do salicilato de metila sobre resilon e guta-percha

• Autor(a) principal: Nascimento, Camila Almeida [UNESP]
• Data de Publicação: 2012
• Outros Autores: Tanomaru-Filho, Mário [UNESP], Sant'Anna Júnior, Arnaldo [UNESP], Bosso, Roberta [UNESP], Faria, Gisele [UNESP], Guerreiro-Tanomaru, Juliane Maria [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://revodontolunesp.com.br/article/51ae4aa81ef1faca3d0038f0; http://hdl.handle.net/11449/126101
• topic: Endodontics; Gutta-percha; Xylenes; Dissolution; Endodontia; Guta-percha; Xilenos; Dissolução

Objective: The aim of this study was to evaluate the action of methyl salicylate in dissolving Resilon and gutta-percha. Material and method: Ten discs of Resilon, Alpha gutta-percha and ProTaper gutta-percha were prepared (10 mm diameter × 1 mm thick) and kept at 37 °C for 48 hours. Each sample was weighed in a balance of accuracy determining the initial mass. The specimens were immersed in methyl salicylate or xylene (control) for 5  minutes, rinsed in water for 30 minutes, dried and subsequently weighed in 24 hours intervals until the stabilization of weight (final mass). The solvent capacity was expressed by the difference between the final and initial mass. The data were analyzed by using ANOVA and Tukey test with significance level of 5%. Result: The results showed that the methyl salicylate was more effective on Resilon than on gutta-percha (p < 0.05). Methyl salicylate and xylene had similar solvent action on Resilon (p > 0.05). The xylene showed better performance on gutta-percha than methyl salicylate (p < 0.05). Conclusion: It was concluded that methyl salicylate did not show solvent action on gutta-percha, however it showed effectiveness in dissolution of Resilon. Thus methyl salicylate can be a possible alternative to the use of xylene during endodontic retreatment of teeth obturated with Resilon.