Influência da irrigação ultrassônica e soluções quelantes no selamento da obturação de canais radiculares

• Ano de defesa: 2012
• Autor(a) principal: Franciscatto, Gisele Jung
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; BR; Odontologia; UFSM; Programa de Pós-Graduação em Ciências Odontológicas
• Palavras-chave em Português: Irrigação ultrassônica passiva; Selamento; Obturação; Ácido cítrico; Passive ultrasonic irrigation; Sealing; Root canal filling; Citric acid; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
• Link de acesso: http://repositorio.ufsm.br/handle/1/6089

The present study assessed and compared the influence of the root canal treatment with and without passive ultrasonic irrigation with 17% ethylenediaminetetraacetic acid (EDTA) and 10% citric acid on the sealing of pre-molars root canal fillings. A hundred and fifteen single-rooted, human mandibular pre-molars, with oval canal, were selected. The teeth were prepared with rotatory instrumentation and irrigated according to the following protocols (n=23): G1, 17% EDTA + US; G2, 17% EDTA; G3, 10% citric acid + US; G4, 10% citric acid and a control group, 2,5%.sodium hypochlorite (NaOCl). The specimens were filled according to the no compaction technique and then inserted to a device for measuring the glucose leakage. Leakage was assessed through a Glucose Kit in a spectrophotometer at 7 and 30 days. Kruskal-Wallis test results showed less leakage on passive ultrasonic irrigation groups, with both test solutions (p<0,05). Mann-Whitney analysis showed that teeth treated with 17% EDTA showed less leakage levels then the ones treated with 10% citric acid (p<0,05). Passive ultrasonic irrigation with chelating solutions, specially EDTA, results in a better sealing of root canal filling Key-words: passive ultrasonic irrigation; sealing; root canal filling; citric acid.