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Translucency of Value Resin Composites Used to Replace Enamel in Stratified Composite Restoration Techniques

Authors

  • MAX SCHMELING DDS, MS,

    Corresponding author
    1. PhD Student, Operative Dentistry, School of Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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  • MAURO AMARAL CALDEIRA DE ANDRADA DDS, MS, PhD,

    1. Professor, Operative Dentistry, School of Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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  • HAMILTON PIRES MAIA DDS, MS, PhD,

    1. Professor, Operative Dentistry, School of Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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  • EDSON MEDEIROS DE ARAÚJO DDS, MS, PhD

    1. Adjunct Professor, Dental Clinics, School of Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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  • This article is accompanied by commentary, “Translucency of Value Resin Composites Used to Replace Enamel in Stratified Composite Restoration Techniques”, Marcela Hernandez, DDS, MS DOI: 10.1111/j.1708-8240.2011.00420.x

Max Schmeling, DDS, MS, Dentística Restauradora, Departamento de Odontologia, CCS, Campus Trindade, UFSC, Florianópolis, Santa Catarina, CEP:88040900, Brazil; Tel.: 55 (048) 37219880; Fax: 55 (048) 32341788; email: bluemax@globo.com

Abstract

ABSTRACT

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.

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