The Effect of Different Polishing Methods on the Color Stability of Anterior Aesthetic Composite Restorations

Necmettin Erbakan University 3. International Dentistry Congress, Konya, Türkiye, 24 - 26 Mayıs 2024, ss.392

Objective: The aim of this in vitro study was to investigate the effect of different polishing methods on the color stability of anterior

aesthetic composite restorations after coffee consumption-induced discoloration.

Materials and methods: Specimens prepared from anterior resin composite were randomly divided into 5 groups (n = 5) according

to different polishing methods; Group 1: Control, Group 2: Identoflex (Kerr), Group 3: Composoft (EVE), Group 4: Diapolisher Paste

(GC) and Group 5: Twist Dia (Kuraray). Initial color measurements were made after the samples were polished and then immersed

in a coffee solution prepared with 3.6 grams of filter coffee per 100 ml of water. Color measurements were performed at baseline

(T0), first (T1), and seventh (T2) days using a clinical spectrophotometer (VITA Easyshade) according to the CIELab color system.

One-way analysis of variance (One-way ANOVA) and Tukey post-hoc test statistical analyses were used to evaluate color changes

(ΔE) and significance level was set as p ≤ 0.05.

Results: According to the data obtained, G2 (2.66±0.42) and G5 (2.9 ±0.81) showed the lowest ΔE values after one day of coffee

soaking, while G4 (5.98±0.77) was significantly higher than all groups. After seven days in coffee, G5 (5.67±0.57) showed the lowest

ΔE value, while G3 (8.11±1.54) and G4 (8.33±0.95) were significantly higher than all groups.

Conclusions: Anterior aesthetic composites may show discoloration with the use of coffee. These discolorations can be reduced by

polishing the restorations with an appropriate polishing technique. Therefore, the selection of the appropriate polishing technique is

of great clinical importance.

Keywords: anterior aesthetic composite, color stability, coffee, polishing