Avaliação de diferentes técnicas de inserção de cimento endodôntico e determinação de protocolos para análise em microscopia eletrônica de varredura e microscopia confocal

• Ano de defesa: 2017
• Autor(a) principal: Oliveira, Kauhanna Vianna de
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Positivo; Brasil; Programa de Pós-Graduação; Programa de Pós-Graduação em Odontologia Clínica; UP
• Palavras-chave em Português: Odontologia; Endodontia; Microscopia confocal; Microscopia Eletrônica de Varredura; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
• Link de acesso: https://repositorio.cruzeirodosul.edu.br/handle/123456789/2052

Introduction: Sealer sonic activation is a new proposal during endodontic treatment. The aim of this study was to compare the effect of four sealer placement devices and two irrigations of sealer penetration into dentinal tubules of extracted teeth. Methods: Ninety single-rooted human teeth were allocated in 8 expermental and 1 control groups according to iorrigation: syringe and NaveTip needle (NT) or EndoActivator (EA); and sealer placement: K-File (KF), lentulo spiral (LS), Easy Clean (EC), EndoActivator (EA) and control (C). 17% EDTA and 5.25% NaOCl were used as irrigants except in group C irrigated with saline. Teeth were obturated with AH Plus and GuttaCore X3 and sectionated at 2 mm and 5 mm from root apex, then examinated by CLSM and SEM. Percentage and maximum depth of sealer penetration were measured. Data were evaluated by Kruskal-Wallis and Mann-Whitney tests reporting EA irrigation was significant superior than NT in maximum depth of sealer penetration. Results: Apical distance 5 mm showed significant higher results than 2 mm. In percentage analysis EC group was significant different from LS, other instruments except group C performed similar. Conclusion: Regarding to percentage of sealer penetration group EA was significant superior than NT, as EC group was more effective than LS (P < .01); all instruments to sealer placement performed similar in both analysis; 5 mm apical distance was significant higher than 2 mm (P < .05).