Influence of gutta-percha cone disinfection on leakage: comparison of two sealability assessment methodologies

• Autor(a) principal: Scarparo, Roberta Kochemborger
• Data de Publicação: 2015
• Outros Autores: Canali, Fabiane, Hirai, Vinicio Hidemitsu Goto, Silva Neto, Ulisses Xavier da, Hoppe, Carolina Bender, Grecca, Fabiana Soares
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Brazilian journal of oral sciences (Online)
• DOI: 10.20396/bjos.v10i4.8641608
• Texto Completo: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641608
• topic: Disinfection; Gutta-percha; Dental leakage; Sodium hypochlorite; Endodontics; Odontologia

Aim: To clarify the influence of 5.25% sodium hypochlorite disinfection of gutta-percha cones on leakage and to compare the outcomes of two sealability assessment methodologies (fluid filtration and dye penetration methods). Methods: Thirty teeth were prepared and filled using the guttapercha lateral condensation technique. Group I was filled with gutta-percha cones disinfected with sodium hypochlorite 5.25%, while Group II was filled with cones that were not disinfected. Apical leakage was measured using: (a) fluid filtration technique and (b) linear measurement of dye penetration after clearance. Results: The Student’s t-test showed no significant difference between the groups for both techniques (p<0.05). Conclusions: Both methodologies employed, even with the inherent limitations, were capable of identifying sealing failures. The disinfection of gutta-percha cones with 5.25% sodium hypochlorite did not alter apical leakage.