Department of Restorative Dentistry, Faculty of Dentistry, Erzincan Binali Yıldırım University, Erzincan, Turkey.
Department of Periodontology, Faculty of Dentistry, Erzincan Binali Yıldırım University, Erzincan, Turkey.
BMC Oral Health. 2024 Jul 28;24(1):860. doi: 10.1186/s12903-024-04654-3.
This study aimed to investigate the effect of whitening toothpastes on the color stability and surface roughness of resin composites stained with coffee and cigarette smoke.
Seventy-two disk-shaped specimens (6 × 2 mm) of suprananohybrid resin composite were randomly divided into two groups and exposed to coffee and cigarette smoke (n = 36). After staining, the samples randomly divided into four groups according to whitening toothpastes and were brushed for 4 min: Opalescence Whitening (OW); Colgate Optic White (COW); Curaprox Black is White (CPX) and, distilled water (control) (n = 9). Color was measured with spectrophotometer at the initial, after staining, and after brushing, and surface roughness was measured with profilometer at the initial and after brushing. A surface morphology analysis was examined using scanning electron microscopy and atomic force microscopy. The obtained data were statistically analyzed. (p < 0.05).
Cigarette smoke caused a significantly higher color change than coffee in the resin composite (p < 0.05). Brushing with hydrogen peroxide and silica-containing whitening toothpaste showed significant differences in color change (p < 0.05). The lowest whitening effect was found in activated charcoal-containing toothpaste. While all toothpastes increased the degree of surface roughness of resin composites, the highest roughness was caused by whitening toothpastes containing activated charcoal. (p < 0.05).
The color stability and surface properties of resin composites can be affected by brushing them with whitening toothpaste. The utilization of whitening toothpaste containing hydrogen peroxide can be considered a safe method for increasing the whiteness of discolored resin composites.
本研究旨在探讨美白牙膏对咖啡和香烟烟雾染色后的树脂复合材料颜色稳定性和表面粗糙度的影响。
将 72 个圆盘状（6×2mm）超纳米复合树脂复合材料试件随机分为两组，暴露于咖啡和香烟烟雾中（n=36）。染色后，根据美白牙膏将样本随机分为四组，分别用 Opalescence Whitening（OW）、Colgate Optic White（COW）、Curaprox Black is White（CPX）和蒸馏水（对照组）进行刷牙 4 分钟：（n=9）。用分光光度计在初始、染色后和刷牙后测量颜色，用轮廓仪在初始和刷牙后测量表面粗糙度。用扫描电子显微镜和原子力显微镜观察表面形貌分析。对获得的数据进行统计学分析。（p<0.05）。
香烟烟雾导致树脂复合材料的颜色变化明显高于咖啡（p<0.05）。用含过氧化氢和二氧化硅的美白牙膏刷牙会导致颜色变化有显著差异（p<0.05）。含活性炭的牙膏具有最低的美白效果。虽然所有牙膏都会增加树脂复合材料的表面粗糙度，但含活性炭的美白牙膏会导致最大的粗糙度。（p<0.05）。
用美白牙膏刷牙会影响树脂复合材料的颜色稳定性和表面性能。使用含过氧化氢的美白牙膏可以被认为是增加变色树脂复合材料白度的安全方法。
