Effects of polishing on surface roughness, gloss, and color of resin composites

• Published in: Journal of Oral Science 2011, Vol.53(3), pp.283-291
• Main Authors: Hosoya, Yumiko, Shiraishi, Takanobu, Odatsu, Tetsuro, Nagafuji, Junichi, Kotaku, Mayumi, Miyazaki, Masashi, Powers, John M.
• Format: Article
• Language: English
• Subjects: Bisphenol A-Glycidyl Methacrylate; Color; Colorimetry; Composite Resins; Dental Polishing; Dentistry; gloss; Materials Testing; polishing; resin composite; Surface Properties; surface roughness
• ISSN: 1343-4934; 1880-4926
• DOI: 10.2334/josnusd.53.283

This study evaluated the effects of polishing on surface roughness, gloss, and color of regular, opaque, and enamel shades for each of three resin composites. Two-mm-thick resin disks made with Estelite Σ Quick, Clearfil Majesty, and Beautifil II were final polished with 180-, 1000-, and 3000-grit silicon carbide paper. Surface roughness, gloss, and color were measured one week after curing. Estelite Σ Quick had significantly lower roughness values and significantly higher gloss values as compared with Clearfil Majesty and Beautifil II. The effects of surface roughness and gloss on color (L*a*b*) differed among resin composites and by shade. Correlation coefficients between surface roughness and L*a*b* color factors were generally high for Clearfil Majesty, partially high (i.e., between roughness and L*) for Beautifil II, and low for Estelite Σ Quick. Correlation coefficients between gloss and L*a*b* color parameters were generally high for Beautifil II and low for Estelite Σ Quick and Clearfil Majesty. However, for all resin composites, the values of the color differences between 3000-grit and 180-grit polishing groups for all shades were imperceptible by the naked eye. (J Oral Sci 53, 283-291, 2011)