Análise da penetrabilidade de duas substâncias irrigadoras: estudo em canais simulados

• Autor(a) principal: Andrade, Marcus Vinicius Corvelo de
• Data de Publicação: 2013
• 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/1/14189
• topic: Sodium hypochlorite; Chemical clarification; Contrast media, Photografy dental; Hipoclorito de sódio; Clarificação; Contraste; Fotografia dentária; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA::ENDODONTIA

The aim of this work was to asses ex vivo penetration of two irrigation substances sodium hypochlorite 5% and Chlor-Xtra ® (Vista Dental Products, Racine, WI) by the addition of dye in simulated canals from cleared teeth. Sixty single-rooted human mandibular canines were used. Roots length was standardized to 16 mm and root canal shaping was performed to a working length of 15 mm using Protaper Universal rotary files (Maillefer) up to F2 corresponding to a 25/.08 size/taper. The samples were cleared using clearing technique and and simulated canals were created in apical third at the time of process. Roots were randomly divided into three groups (5% NaOCl, Chlor-Xtra ® and water) containing 20 specimens per group. Samples were irrigated with 1.5 mL of contrast solution (Chinese ink and irrigating substance of the group). And each sample was photographed and analyzed. Data were statistically analyzed by Kruskal-Wallis and Student-Neuman-Keuls tests. No statistical difference between the tested irrigating solutions was found (p> 0.05). From the data analysis, we conclude that in despite of the presence of surfactants in the irrigating solution Chlor-Xtra® did not result better penetration into simulated canals than sodium hypochlorite (NaOCl).