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Type: Artigo de periódico
Title: Influence of fiber-post translucency on the degree of conversion of a dual-cured resin cement
Author: Silva, ALFE
Arias, VG
Soares, LES
Martin, AA
Martins, LRM
Abstract: This study evaluated the degree of conversion of one dual-cured resin cement when used to lute fiber posts with different translucencies. To measure the degree of conversion, polyvinylsiloxane molds were prepared to simulate root canals. The posts, Aestheti-Post or Light-Post, were cemented in these molds and, after photoactivation, were removed to obtain the resin cement spectrum by FT-Raman spectroscopy. Spectra were acquired at three depths: superficial, medium, and deep. For Light-Post, the resin cement at deep depth showed the lowest degree of conversion and no significant difference in degree of conversion was found between the other depths. For Aestheti-Post, the superficial depth presented a higher degree of conversion values than those in the medium and deep depths, which were not significantly different from each other. Light-Post exhibited a higher degree of conversion than that of Aestheti-Post only at medium depth. Light-Post effectiveness regarding the degree of conversion is dependent on the depth.
Subject: degree of conversion
dual-cure resin cement
fiber post
translucent post
Country: EUA
Editor: Elsevier Science Inc
Rights: fechado
Identifier DOI: 10.1016/j.joen.2006.11.015
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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