The Chameleon Effect of Monochromatic Composite Resin: A Systematic Review and Meta-Analysis
Camila Pimenta de Araújo Guimarães
Faculty of Biological and Health Sciences, Department of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucurí – UFVJM Rua da Glória, nº187, Bairro Centro - Diamantina - Minas Gerais, CEP 39100-000, Brazil.
Adriana da Silva Torres
*
Faculty of Biological and Health Sciences, Department of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucurí – UFVJM Rua da Glória, nº187, Bairro Centro - Diamantina - Minas Gerais, CEP 39100-000, Brazil.
Emanuelle Melquiades Barbosa de Oliveira
Faculty of Biological and Health Sciences, Department of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucurí – UFVJM Rua da Glória, nº187, Bairro Centro - Diamantina - Minas Gerais, CEP 39100-000, Brazil.
Júlia Fehrenbach
Dental Clinic in the Area of Cariology-Dentistry in the Postgraduate Program in Dentistry at the Universidade Federal do Rio Grande do Sul - Av. Paulo Gama, 110 - Bairro Farroupilha - Porto Alegre - Rio Grande do Sul, CEP 90040-060, Brazil.
Cristina Pereira Isolan
Faculty of Biological and Health Sciences, Department of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucurí – UFVJM Rua da Glória, nº187, Bairro Centro - Diamantina - Minas Gerais, CEP 39100-000, Brazil.
Cíntia Tereza Pimenta de Araújo
Faculty of Biological and Health Sciences, Department of Dentistry, Universidade Federal dos Vales do Jequitinhonha e Mucurí – UFVJM Rua da Glória, nº187, Bairro Centro - Diamantina - Minas Gerais, CEP 39100-000, Brazil.
*Author to whom correspondence should be addressed.
Abstract
Aims: The aim of this systematic review was to evaluate the optical properties of monochromatic composite resins and conventional composite resins in direct restorations in permanent teeth.
Study Design: A systematic review and meta-analysis.
Methodology: The searches were carried out in July and August, in the following databases:: Medline (PubMed), Web of Science, ScienceDirect and Google Scholar. The articles were selected, first by title, followed by reading the abstract and finally the complete work. Two independent meta-analyses were performed using Review Manager 5.4 software.
Results: Two hundred and eleven articles were found, 6 articles were included in this systematic review and, among these, 4 were included in the meta-analysis. The meta-analysis when comparing monochromatic resins and conventional composite resins, using color stability data showed greater optical performance of the monochromatic resin for subgroups A2 and A3. After analyzing the age data according to the Coffee and Tea subgroups, the monochromatic resin showed no statistical difference. For color variation during bleaching, the monochromatic resin showed statistically lower color variation. For color matching, conventional resins showed higher shade matching ability compared to monochromatic composite.
Conclusion: Therefore, the monochromatic resin presented greater color stability in shades A2 and A3 and presented better results in terms of color variation compared to the conventional composite resin after bleaching.
Keywords: Composite resin, color, monochromatic resin, chameleon effect, unicromatic resin