Artículos de revistas
Influence Of Fiber-post Translucency On The Degree Of Conversion Of A Dual-cured Resin Cement.
Registro en:
Journal Of Endodontics. v. 33, n. 3, p. 303-5, 2007-Mar.
0099-2399
10.1016/j.joen.2006.11.015
17320720
Autor
Faria e Silva, André Luís
Arias, Vanessa Gallego
Soares, Luís Eduardo Silva
Martin, Airton Abrahão
Martins, Luís Roberto Marcondes
Institución
Resumen
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. 33 303-5