Akademik Veri Yönetim Sistemi
CLINICAL ORAL INVESTIGATIONS, sa.4, 2025 (SCI-Expanded)
Background: This study aimed to verify the effects of whitening agents on the color stability of aligner attachments made from flowable and packable composite resins after staining with coffee and wine. Methods: Two composite groups were used for attachment preparation on epoxy resin master models: G-ae nial Universal Injectable flowable (Group 1, N = 42) and G-ae nial Posterior packable (Group 2, n = 42). Initial staining of samples was performed with coffee and red wine respectively, with a total period of 6 days representing 6 months of consumption. After staining, each main group was randomly divided into 3 groups related to distilled water as the control (Distilled Water (DW), n = 14) and whitening agents (Whitening Oral Rinse (WR), n = 14) (Carbamide Peroxide 22% (CP), n = 14) for a 14-day test period. Before staining (T0), after staining (T1), and after whitening (T2), color measurements were made with Vita Easy Shade V. Delta E-00 formula was used to determine color differences between T0-T1 (Delta E-001), T1-T2 (Delta E-002) and T0-T2 (Delta E-003) color measurement periods. Also, attachments' whiteness change before and after whitening procedures was calculated using the Whiteness Index for Dentistry (WID) formula considering as Delta WID1 = WID(T2) - WID(T0) and Delta WID2 = WID(T2) - WID(T1). Results: After immersion in staining solutions, Delta E-001 values of Group 2 were significantly higher than of values of Group 1 (p < 0.001). In Group 1, Delta WID2 values in the WR and CP groups were found to be significantly higher than measurements in the DW group (p = 0.049 and p = 0.001). In Group 2, the value of Delta E-002 for subgroup CP was significantly higher than that for DW group (p = 0.023). Also, the Delta E-003 measurement of the WR group was higher than the measurement of the CP group (p < 0.001). In Group 2, the Delta WID1 measurement of the CP group was lower than the measurements of the DW (p < 0.001) and WR (p = 0.014) groups. According to Delta WID2 measurement in Group 2, CP measurements were higher than DW (p < 0.001) and WR (p = 0.024) measurements. Statistically significant differences were determined between the composite types for DW, WR, CP whitening types in terms of Delta E-003 and Delta WID1 measurements and between the composites for CP whitening type in terms of Delta WID2 measurements (p < 0.05). For all significant differences, measurements for Group 2 were found to be higher than for Group 1. Conclusion: