Avaliação da microinfiltração marginal em cavidades de classe V restauradas com diferentes sistemas adesivos
Marginal microleakage evaluation in class v cavities, restored with different adhesive systems
Porto Neto, S.T.; Dinelli, W.; Cândido, M.S.M.; Mandarino, F.; Loffredo, L.C.M.
Rev. odontol. UNESP, vol.20, nÚnico, p.247-256, 1991
Resumo
Este estudo teve o objetivo de avaliar in vitro a microinfiltração marginal na parede oclusal e parede cervical, de cavidades de classe V restauradas com sistemas de adesão dentinária/resina composta ou com cimentos de ionômero de vidro. Concluímos que: para parede oclusal, os sistemas restauradores adesivos estudados apresentaram estatisticamente o mesmo comportamento; para parede cervical, nenhum dos sistemas restauradores adesivos foi capaz de eliminar a microinfiltração marginal; a microinfiltração marginal ocorreu em maior grau na parede cervical, quando comparada com a parede oclusal.
Palavras-chave
Microinfiltração marginal, adesivos dentinários, cimento de ionômero de vidro
Abstract
This study had the purpose of evaluating in vitro the marginal microleakage at both the enamel and dentin margins of the class V cavities restored with dentin bonding agents/composite resin or with glass ionomer cements. Findings indicated that: 1. The adhesive restorative systems for the enamel margin herein have showed the same behavior; 2. Not one of the adhesive restorative systems was able to eliminate the microleakage in the dentin margin; 3. The microleakage has occurred in a higher degree in the dentin margin when compared to the enamel margin.
Keywords
Marginal microleakage, dentin bonding agents, glass ionomer cements
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