Table of Contents
ISRN Dentistry
Volume 2011 (2011), Article ID 617672, 6 pages
http://dx.doi.org/10.5402/2011/617672
Research Article

Effect of the Polishing Procedures on Color Stability and Surface Roughness of Composite Resins

1Department of Restorative Dentistry, Paraná West State University, Rua Universitária, 1619, Jardim Universitário, 85819-110 Cascavel, PR, Brazil
2Department of Pediatric Dentistry, Piracicaba Dental School, UNICAMP, Av. Limeira, 901, 13414-903 Piracicaba, SP, Brazil
3Bauru School of Dentistry, University of São Paulo, Al. Dr. Octávio Pinheiro Brisolla, 9-75, 17012-901 Bauru, SP, Brazil
4Dental Materials Division, Department of Restorative Dentistry, Piracicaba Dental School, UNICAMP, 13083-970 Campinas, SP, Brazil
5UNIPAR, Paranaense University, Rua Rui Barbosa 611, 85810-240 Cascavel, PR, Brazil

Received 4 April 2011; Accepted 13 May 2011

Academic Editor: D. Wray

Copyright © 2011 Vera Lucia Schmitt et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives. To evaluate the polishing procedures effect on color stability and surface roughness of composite resins. Methods. Specimens were distributed into 6 groups: G1: Filtek Supreme XT + PoGo; G2: Filtek Supreme XT + Sof-Lex; G3: Filtek Supreme XT + no polishing; G4: Amelogen + PoGo; G5: Amelogen + Sof-Lex.; G6: Amelogen + no polishing. Initial color values were evaluated using the CIELab scale. After polishing, surface roughness was evaluated and the specimens were stored in coffee solution at 3 7 C for 7 days. The final color measurement and roughness were determined. Results. Sof-Lex resulted in lower staining. Amelogen showed the highest roughness values than Filtek Supreme on baseline and final evaluations regardless of the polishing technique. Filtek Supreme polished with PoGo showed the lowest roughness values. All groups presented discoloration after storage in coffee solution, regardless of the polishing technique. Conclusion. Multiple-step polishing technique provided lower degree of discoloration for both composite resins. The final surface texture is material and technique dependent.