Akademik Veri Yönetim Sistemi
International Dental Research, cilt.12, sa.3, ss.137-142, 2022 (Hakemli Dergi)
Abstract
Aim: Air powder polishing (APP) can cause roughness on composite
surfaces, and consequently the color change that occurs over time affects
the aesthetic negatively. Here, we aim to investigate the effect of
repolishing on the roughness and discoloration of resin composites after
APP to avoid its negative effects for the first time.
Methodology: A total of 39 composite discs were randomly allocated into
three groups: Group I: Control (n = 13), Group II: Air Powder Polished (n =
13), and Group III: Air Powder Polished + Re-polished (n = 13). Color and
surface roughness of the discs were measured before and after immersion
in coffee for 1 week. Color was measured using a colorimeter (CR-400,
Konica Minolta, Osaka, Japan), and roughness was measured using a
surface roughness analyzer (SJ-400, Mitutoyo, Japan).
Results: All specimens in the groups, except those in Group III, showed
significant changes in roughness, and all materials showed significant color
changes after immersion in the coffee relative to the baseline. There was
no statistically significant difference between the groups in terms of
roughness and color.
Conclusion: In this study, we showed that repolishing after APP does not
significantly improve the color stability and roughness of the composite
restorations.
Keywords: Dental air abrasion, surface roughness, repolishing,
composite resin, colorimeter, coloring agent