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Influence of Resin Solvent on Color and Surface Roughness of Aesthetic Restorative Materials
1Restorative Dental Science Department, College of Dentistry, Imam Abdul Rahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia; Operative Dentistry Department, Faculty of Dentistry, Cairo University, Cairo, Egypt, Phone: +966 542312172,
Aim:
The aim of the study was to ascertain the influence of a resin remover on color and surface roughness of two resin composites.
Materials And Methods:
Disc-shaped specimens were fabricated from either a Te-Econom plus microhybrid or a Tetric EvoCeram nanocomposite. The color and surface roughness of the specimens were measured before and after treatment, with a resin remover for 3, 5, and 8 minutes. The color was measured using a reflective spectrophotometer according to the CIE L*a*b* color space measurements. Surface roughness was evaluated using optical profilometry. Results were statistically analyzed using Student's t test, ANOVA, Tukey's post hoc, and Pearson's correlation tests.
Results:
The resin remover induced a statistically significant color change of both resin composites, which increased with increasing the time of immersion to 8 minutes. The color change of Tetric EvoCeram was higher than that of the Te-Econom Plus. Surface roughness change was more pronounced with Tetric EvoCeram. No correlation was found between changes in color and surface roughness.
Conclusion:
Resin solvent changed the color of microhybrid and nanocomposite. Increasing the immersion time to 8 minutes increased the color change. The type of composite influenced the changes in color and surface roughness.
Clinical Significance:
Resin solvent had potentials to stain resin composites, which could be helpful in its identification from tooth structure during removal of failed resin composite restorations.
