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Updated: Jun 10, 2026
03:37
Evaluating the Effects of Different Polishing Methods on Color Stability of Dental Restorations in Pediatric Dentistry
Published on: June 6, 2025
Morphologic texture characterization allied to cigarette smoke increase pigmentation in composite resin restorations
Paula Mathias1, Leonardo Costa, Letícia Oliveira Saraiva
1Department of Clinical Dentistry, School of Dentistry, Federal University of Bahia, Salvador, Brazil. pmathias@yahoo.com
Summary
Tobacco smoke significantly stains composite resins, especially on texturized surfaces. While repolishing can reduce staining, it may not fully restore the original color of dental restorations.
Area of Science:
- Dental Materials Science
- Esthetic Dentistry
Background:
- Clinical observation indicates tobacco smoke stains resin-based composites.
- The impact of surface texture on smoke-induced staining and the efficacy of repolishing remains unclear.
Purpose of the Study:
- To assess the effect of tobacco smoke on the color of smooth and texturized composite surfaces.
- To determine if repolishing can reverse smoke-induced color changes in composites.
Main Methods:
- Forty composite specimens were divided into smooth and texturized groups.
- Specimens were exposed to tobacco smoke daily for 21 days.
- Color changes (L*, b*, DeltaE) were measured at baseline, after smoking, and after repolishing.
Main Results:
- Tobacco smoke significantly altered composite color, reducing luminosity and increasing yellowness.
- Texturized surfaces showed increased susceptibility to staining.
- Repolishing reduced DeltaE but did not fully restore baseline color.
Conclusions:
- Tobacco smoke causes significant color changes in composite resins.
- Surface texturization can exacerbate smoke-induced staining.
- Repolishing offers partial color correction but does not fully reverse the staining effects.
