EFEITO DA APLICAÇÃO SÔNICA DE SISTEMAS ADESIVOS NA ADESÃO DE PINOS DE FIBRA DE VIDRO NO CANAL RADICULAR

• Ano de defesa: 2014
• Autor(a) principal: Sánchez, Johanna Lizbeth Cuadros
• Orientador(a): Loguércio, Alessandro Dourado
• Banca de defesa: Sousa Neto, Manoel Damião , Calixto, Abraham Lincoln
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: UNIVERSIDADE ESTADUAL DE PONTA GROSSA
• Programa de Pós-Graduação: Programa de Pós-Graduação em Odontologia
• Departamento: Clinica Integrada, Dentística Restauradora e Periodontia
• País: BR
• Palavras-chave em Português: aplicação vibratória; dentina radicular; grau de conversão; nanoinfiltração; pinos de fibra; Push-out; resistência de uniao
• Palavras-chave em Inglês: sonic application; root dentin; degree of conversion; nanolake; fiber posts; Pus-out; bond strength
• Área do conhecimento CNPq: CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA
• Link de acesso: http://tede2.uepg.br/jspui/handle/prefix/1835

Abstract: Luting of posts inside the root canal is still a challenge because of the difficult to bonding mainly in the apical third. The aim of this study was evaluate the influence of the application of 3 simplified total-etch adhesive systems (Adper Single Bond 2 Ambar, and XP-Bond+self-cure activator) under manual mode or sonic vibration on the push-out bond strength (POBS), silver nitrate uptake (SNU) and in situ degree of conversion (ISDC) associated to resin cement when used for luted posts. Methods: The roots of 66 human premolars were prepared and divided into six groups (n=11), according to the following combination: adhesive and application mode. The posts were cemented in accordance with the manufacturer’s instructions of each cementation system. After water storage, the roots were sectioned transversely into six slabs and it were tested in POBS (0.5mm/min). Two roots for group were data were immersed in 50% silver nitrate, photo-developed and analyzed by SEM to measure the SNU. Two roots for group were evaluated by micro-Raman spectroscopy to measure ISDC. The data were analyzed by 3-way repeated measures ANOVA and Tukey's tests (5%). Results: When sonic application was performed, usually there are a significantly increasing on the POBS (MPa) (35% and 37% respectively) and ISDC (%) (14% and 38% respectively in the medium and apical thirds) and decreasing of SNU (%) for all groups mainly in the medium (64% decreasing) and apical (84%) thirds when compared with manually application (P < 0.05).