Akademik Veri Yönetim Sistemi
CED/NOF-IADR 2024 Oral Health Research Congress, Geneve, İsviçre, 12 - 14 Eylül 2024, ss.233
Objectives The aim of this study was to evaluate and compare the effect of coffee and a whitening
mouthwash on color stability of three single-shade resin composite materials.
Methods 3 single-shade resin composites (Tokuyoma Omnichroma-OMN, Kulzer Charisma Diamond
One-ONE, FGM Vittra Unique-UNQ) were tested. From each composite 10 disk-shaped (5 x 4 mm) were
prepared (n = 10) samples. Each group was then divided into two subgroups (n=5); coffee and distilled
water immersion. Color measurements were made at initial, first day and 7th day using a clinical
spectrophotometer (VITA Easyshade) according to the CIELab color system. After 7 days of coffee
immersion, all samples were immersed in whitening mouthwash (Listerine Advanced White) and shaked
continuously for 60 seconds, rinsed under running water for 30 seconds. Then were placed in distilled
water. After this 4-week bleaching cycle, color measurements were made. One-way analysis of variance
(One-way ANOVA), Tukey post-hoc test and independent t-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, after one day of immersion in coffee, Group OMN 7,58(0,24)a was
significantly less colored than the other groups. After one week of coffee immersion, Group UNQ
12.83(0.66)b was significantly more colored. After whitening mouthwash, Group OMN 7.6 (0.45)a whitened
the most and Group UNQ 11.23 (0.43)c whitened the least.
Conclusions The use of coffee causes discoloration of composite restorations. Whitening mouthwashes
without hydrogen peroxide can contribute slightly to whitening by removing superficial staining without
extra whitening effect on composite restorations. The effect is lower than other professional teeth
whitening methods. It can therefore be considered as a complementary treatment to prevent recurrent
tooth and restoration discoloration.