INTEMA   05428
INSTITUTO DE INVESTIGACIONES EN CIENCIA Y TECNOLOGIA DE MATERIALES
Unidad Ejecutora - UE
artículos
Título:
Polymerization shrinkage of a dental resin composite determined
Autor/es:
GUSTAVO ARENAS A, SERGIO NORIEGA B, CLAUDIA VALLO C, RICARDO DUCHOWICZ
Revista:
OPTICS COMMUNICATIONS
Editorial:
Elsevier
Referencias:
Lugar: London; Año: 2006
ISSN:
0030-4018
Resumen:
Abstract
A fiber optic sensing method based on a Fizeau-type interferometric scheme was employed for monitoring linear polymerization
shrinkage in dental restoratives. This technique offers several advantages over the conventional methods of measuring polymerization
contraction. This simple, compact, non-invasive and self-calibrating system competes with both conventional and other high-resolution
bulk interferometric techniques. In this work, an analysis of the quality of interference signal and fringes visibility was performed in order
to characterize their resolution and application range. The measurements of percent linear contraction as a function of the sample thickness
were carried out in this study on two dental composites: Filtek P60 (3M ESPE) Posterior Restorer and Filtek Z250 (3M ESPE)
Universal Restorer. The results were discussed with respect to others obtained employing alternative techniques.