RESUMEN
STATEMENT OF THE PROBLEM: Fluorescence is an optical signal that is present in natural teeth and some dental restorative materials as a consequence of its molecules energetic decrease. Restorative materials need to match the fluorescence properties of surrounding tooth structure to achieve the best esthetics and appear undetectable. PURPOSE: The fluorescence of 10 commercial composites (shade A2 or equivalent) was tested against that of tooth structure using contrast differences. MATERIALS AND METHODS: Thirty-three standard preparations (3.0-mm wide and 2.00-mm depth) were done on mean maxillaries incisors and divided into 10 groups containing three test samples each. High-definition images of the restored areas and adjacent tooth structure were obtained both under white light of the visible spectrum (control) and ultraviolet light (UV-A=300/ 400 nm). The contrast between composites and tooth structure, expressed in absolute values, was analyzed through digital processing Matlab and Origin softwares and by one-way analysis of variance and Tukey's test (pAsunto(s)
Resinas Acrílicas/efectos de la radiación
, Color
, Resinas Compuestas/efectos de la radiación
, Restauración Dental Permanente
, Fluorescencia
, Poliuretanos/efectos de la radiación
, Diente/efectos de la radiación
, Resinas Acrílicas/química
, Análisis de Varianza
, Colorimetría/métodos
, Resinas Compuestas/química
, Proyectos Piloto
, Poliuretanos/química
, Diente/química