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Translucency of Value Resin Composites Used to Replace Enamel in Stratified Composite Restoration Techniques
Author(s) -
SCHMELING MAX,
DE ANDRADA MAURO AMARAL CALDEIRA,
MAIA HAMILTON PIRES,
DE ARAÚJO EDSON MEDEIROS
Publication year - 2012
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/j.1708-8240.2011.00419.x
Subject(s) - enamel paint , materials science , resin composite , composite material , composite number , post hoc , color difference , dental restoration , dentistry , enhanced data rates for gsm evolution , medicine , computer science , telecommunications
Background: The translucency of enamel shade is a crucial property that affects the color of a layered restoration. Objective: This study evaluated the translucency of high‐, medium‐, and low‐value resin composites (4 Seasons, Ivoclar Vivadent, Schaan, Liechtenstein) used to replace enamel in stratified composite restoration techniques. Materials and Methods: The color specimens with 12 mm in diameter and various thicknesses (0.5, 1.0, 1.5, 2.0, 3.0, 4.0 mm) were measured after polymerization on a reflection spectrophotometer over white and black backgrounds to calculate the translucency parameter (TP). The statistical analysis of TP was accomplished using two‐way analysis of variance ( p < 0.05). Significant differences were revealed by the Tukey's Honestly Significant Difference post hoc test. Results: Translucency of the value composite resins was influenced by the value and thickness. Color of value resin composites was dependent on the background contrast at the evaluated thicknesses. Conclusions: High‐value composite resins were more translucent than medium‐value composites, which were more translucent than low‐value composites. The translucency decreased as the thickness of the specimens increased. CLINICAL SIGNIFICANCE The results suggest that special attention should be paid to the thickness of the increment of value composite resins when reproducing translucency of natural tooth enamel.