Open AccessINFILTRAÇÃO MARGINAL DE CIMENTOS IONOMÉRICOS MODIFICADOS POR RESINA
Author(s) -
Carlos Eduardo Carrara,
Ruy César Camargo Abdo,
María Aparecida de Andrade Moreira Machado,
Salete Moura Bonifácio da Silva
Publication year - 1997
Publication title -
revista de odontologia da universidade de são paulo/revista de odontologia da universidade de são paulo
Language(s) - English
Resource type - Journals
eISSN - 1806-9371
pISSN - 0103-0663
DOI - 10.1590/s0103-06631997000200002
Subject(s) - materials science
Comparou-se a infiltração marginal de dois cimentos restauradores que liberam flúor, o Vitremer/3M e o Variglass/Caulk Dentsply. Cavidades classe II foram confeccionadas nas faces mesiais e distais de pré-molares extraídos. Cada dente recebeu uma restauração de cada material. Procedeu-se, então, a termociclagem em solução de fucsina básica a 0,5%. Nenhum material foi capaz de evitar a infiltração marginal, porém, esta foi menor nas restaurações de Vitremer/3M (p<0,01). The microleakage behavior of two hybrid glass ionomer cements used as restorative materials (Variglass/Caulk Dentsply and Vitremer/3M) was compared. Separate class II cavities were prepared on the mesial and distal aspects of thirteen extracted premolars. One restoration of each material was placed on every tooth. The cervical margins of the restorations were left one millimeter below the cementoenamel junction. Thermocycling was conduced in a 0.5% basic fuchsin solution. The teeth were washed and sectioned for microleakage analysis under a dissecting microscope. None of the materials tested were able to inhibit dye penetration at the cervical margin. Vitremer/3M was more effective than Variglass/Caulk Dentsply in reducing microleakage