Aydın Merve Nur, Şükür Elif Yazan, Karaman Gözde Ece, Kaya Emine
Department of Pediatric Dentistry, Faculty of Dentistry, Istanbul Okan University.
Department of Pediatric Dentistry, Faculty of Dentistry, Sağlık Bilimleri University;
J Vis Exp. 2025 Jun 6(220). doi: 10.3791/67762.
The aim of this study was to evaluate the impact of various polishing methods on the color stability of compomer and composite resin restorations used in anterior restorations within pediatric dentistry. One hundred and twenty disc-shaped specimens (8 mm diameter x 4 mm thickness) were prepared from A2 shade compomer and nanohybrid composite resin to assess color stability in four different polishing systems. Sixty specimens from each material were randomly distributed into five groups (n = 12) according to the polishing method used. Group 1: four-step aluminum oxide discs, Group 2: aluminum oxide discs and rubber kit, Group 3: aluminum oxide discs and felt discs, Group 4: aluminum oxide discs and spiral wheels, and Group 5: no polishing. The specimens were immersed in cherry juice solution for 7 days. The color changes (ΔE) for all materials were assessed using a spectrophotometer at baseline and after 7 days of staining. The collected data were analyzed with the Shapiro-Wilk test, along with the Mann-Whitney U test for comparing two independent groups and the Kruskal-Wallis test for comparing three or more independent groups. Post hoc Bonferroni Corrections were applied to identify the groups causing the differences. As a result of the analyses, statistically significant differences were determined between the staining measurements of the compomer and composite materials across the groups (p < 0.05). The highest level of discoloration for the compomer was in the control group. In conclusion, the selected polishing method influences the degree of discoloration in the compomer groups. In the composite group, polishing methods showed variable effects. Differences were found between the compomer and composite groups. Understanding these effects is crucial for maintaining the esthetic longevity of restorations in young patients.
本研究的目的是评估各种抛光方法对儿童牙科前牙修复中使用的复合体和复合树脂修复体颜色稳定性的影响。从A2色复合体和纳米混合复合树脂制备了120个圆盘形标本（直径8毫米×厚度4毫米），以评估四种不同抛光系统中的颜色稳定性。根据所使用的抛光方法，将每种材料的60个标本随机分为五组（n = 12）。第1组：四步法氧化铝盘；第2组：氧化铝盘和橡胶套件；第3组：氧化铝盘和毛毡盘；第4组：氧化铝盘和螺旋轮；第5组：不抛光。将标本浸入樱桃汁溶液中7天。使用分光光度计在基线和染色7天后评估所有材料的颜色变化（ΔE）。收集的数据用Shapiro-Wilk检验进行分析，同时用Mann-Whitney U检验比较两个独立组，用Kruskal-Wallis检验比较三个或更多独立组。采用事后Bonferroni校正来确定导致差异的组。分析结果表明，各组复合体和复合材料的染色测量之间存在统计学显著差异（p < 0.05）。复合体变色程度最高的是对照组。总之，所选的抛光方法会影响复合体组的变色程度。在复合树脂组中，抛光方法显示出不同的效果。复合体组和复合树脂组之间存在差异。了解这些影响对于维持年轻患者修复体的美学寿命至关重要。
