Çağatay Barutcigil1, Kubilay Barutcigil2, Mehmet Mustafa Özarslan2, Ayşe Dündar1, Burak Yilmaz3. 1. Department of Restorative Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey. 2. Department of Prosthetic Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey. 3. Division of Restorative Sciences and Prosthodontics, The Ohio State University, College of Dentistry, Columbus, Ohio.
Abstract
OBJECTIVE: To evaluate the color stability of novel bulk-fill composite resins. MATERIALS AND METHODS: Color measurements of a nanohybrid composite resin (Z550) and 3 bulk-fill composite resins (BLK, AFX, XTF; n = 45) were performed before polymerization. After polymerization, color measurements were repeated and specimens were immersed in distilled water or red wine, or coffee. Color change [CIEDE2000 (ΔE00 )] was calculated after 24 h, 1 and 3 weeks. Data were analyzed with Kruskal-Wallis, Mann-Whitney U and Wilcoxon tests (α = 0.05). RESULTS: Color changes observed after polymerization were significant for all groups. Color changes observed in distilled water for Z550 and AFX were significant. Color changes after stored in red wine and coffee were significant for all groups. Bulk-fill composite resin color change increased over time for all groups in red wine and coffee (P < .05). CONCLUSION: Polymerization significantly changed the color of nanohybrid composite resin and bulk-fill composite resins. AFX had the highest color change in distilled water. The color of tested bulk-fill composite resins significantly changed after immersion in beverages and over time. Color change observed with the nanohybrid composite resin after 1 week was stable. CLINICAL SIGNIFICANCE: Clinicians should keep in mind that tested composite resins may change color when exposed to water and significantly change color immediately after they are polymerized. In addition, the color change continues over time should the patient is a coffee and/or red wine consumer.
OBJECTIVE: To evaluate the color stability of novel bulk-fill composite resins. MATERIALS AND METHODS: Color measurements of a nanohybrid composite resin (Z550) and 3 bulk-fill composite resins (BLK, AFX, XTF; n = 45) were performed before polymerization. After polymerization, color measurements were repeated and specimens were immersed in distilled water or red wine, or coffee. Color change [CIEDE2000 (ΔE00 )] was calculated after 24 h, 1 and 3 weeks. Data were analyzed with Kruskal-Wallis, Mann-Whitney U and Wilcoxon tests (α = 0.05). RESULTS: Color changes observed after polymerization were significant for all groups. Color changes observed in distilled water for Z550 and AFX were significant. Color changes after stored in red wine and coffee were significant for all groups. Bulk-fill composite resin color change increased over time for all groups in red wine and coffee (P < .05). CONCLUSION: Polymerization significantly changed the color of nanohybrid composite resin and bulk-fill composite resins. AFX had the highest color change in distilled water. The color of tested bulk-fill composite resins significantly changed after immersion in beverages and over time. Color change observed with the nanohybrid composite resin after 1 week was stable. CLINICAL SIGNIFICANCE: Clinicians should keep in mind that tested composite resins may change color when exposed to water and significantly change color immediately after they are polymerized. In addition, the color change continues over time should the patient is a coffee and/or red wine consumer.
Authors: Mehmet Mustafa Özarslan; Ulviye Şebnem Büyükkaplan; Çağatay Barutcigil; Merve Özarslan; Kubilay Barutcigil; Nurullah Türker Journal: Head Face Med Date: 2018-11-26 Impact factor: 2.151