The micro-Raman spectroscopy, a useful tool to determine the degree of conversion of light-activated composite resins.
Light-activated composites are now among the most popular dental restorative materials. Nevertheless, concerns exist about the so-called depth of cure. Infrared spectroscopy (FTIR) has traditionally been used to quantify this problem by evaluating the degree of conversion of dental resins. However, Raman scattering provides an alternate method. This article describes the advantages and the limitations of micro-Raman spectroscopy, as compared to FTIR and other techniques, for calculating the local degree of conversion and the depth of cure of light-cured composites.
Pianelli
C
C
Université catholique de Louvain, Laboratoire de Physique et de Chimie des Hauts Polymères, Place Croix du Sud, 1, B-1348 Louvain-la-Neuve, Belgium.
Devaux
J
J
Bebelman
S
S
Leloup
G
G
D001672:Biocompatible Materials / Q000737:chemistry*; D008027:Light; D012116:Resins, Plant / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman
D001672:Biocompatible Materials; D012116:Resins, Plant