Favoreto Michael Willian, de Oliveira de Miranda Amanda, Matos Thalita P, de Castro Andrea Dos Santos, de Abreu Cardoso Mylena, Beatriz Julia, Collantes-Acuña Jenny, Reis Alessandra, Loguercio Alessandro Dourado
Department of Restorative Dentistry, Tuiuti University of Parana, Parana, Brazil.
Department of Restorative Dentistry, State University of Ponta Grossa, Rua Carlos Cavalcanti, 4748, Bloco M - Uvaranas, Ponta Grossa, PR, Brazil.
BMC Oral Health. 2024 Dec 4;24(1):1464. doi: 10.1186/s12903-024-05108-6.
Obtaining a perfect color match with resin composite presents a significant challenge. The chameleon effect has enabled resin composite to mimic the color of the adjacent tooth structure in vitro. This double-blind, split-mouth and equivalent randomized clinical trial evaluated the color matching of one-shade resin composite with chameleon effect versus multi-shade resin composite in non-carious cervical lesion restorations (NCCLs).
One hundred twenty restorations were performed on NCCLs with two restorative materials (n = 60). After prophylaxis, the teeth were isolated with rubber dam and one universal adhesive was applied in the selective enamel etching strategy. For both groups, the restorations were inserted incrementally. The values of ΔE and ΔE in the cervical and middle third were evaluated using a digital spectrophotometer before vs. after the restorations. The restorations were evaluated at baseline and after 7 days, 6-, 12- and 18-month of clinical performance according to the FDI criteria (Word Federation Criteria). Statistical analysis was performed using Chi-square test for all parameters. Color change was analyzed by two one-sided t-tests for paired samples (α = 0.05).
Regarding the color measurement no significant difference was observed when Vittra APS (FGM Dental Products, Joinville, SC, Brazil) was compared to Vittra Unique (FGM Dental Products, Joinville, SC, Brazil) for any of the comparisons performed (p > 0.05). However, the ΔE and ΔE values for the cervical third, both before and after the restorations, were higher compared to the ΔE and ΔE values observed when comparing the cervical and middle thirds after the restorations. After 18 months, five restorations exhibited minimal discrepancies in terms of marginal adaptation or marginal discoloration (p > 0.05). In all other criteria, including retention rate, no changes were detected at the 18-month recall.
The one-shade resin composite used achieve the same color match when compared to a multi-shade resin composite after a period of 7 days in NCCLs. Overall, the restorations scored clinically very good (FDI) at baseline and after 18 months for all outcomes.
The use of a one-shade resin composite in NCCLs can be recommended because it has the ability to simplify the restoration procedure and maintaining an excellent clinical performance.
RBR-8txr4fw: 26/05/2022.
使树脂复合材料获得完美的颜色匹配是一项重大挑战。变色龙效应已使树脂复合材料能够在体外模拟相邻牙齿结构的颜色。这项双盲、分口和等效随机临床试验评估了具有变色龙效应的单色调树脂复合材料与多色调树脂复合材料在非龋性颈部病变修复（NCCL）中的颜色匹配情况。
使用两种修复材料（n = 60）对120颗NCCL进行修复。预防性处理后，用橡皮障隔离牙齿，并采用选择性釉质酸蚀策略应用一种通用粘结剂。两组均采用分层充填法进行修复。修复前后使用数字分光光度计评估颈部和中三分之一处的ΔE值。根据FDI标准（世界牙科联盟标准）在基线以及临床观察7天、6个月、12个月和18个月后对修复体进行评估。对所有参数进行卡方检验进行统计分析。颜色变化通过配对样本的双侧单样本t检验进行分析（α = 0.05）。
在进行的任何比较中，将Vittra APS（FGM牙科产品公司，巴西圣卡塔琳娜州茹安维尔）与Vittra Unique（FGM牙科产品公司，巴西圣卡塔琳娜州茹安维尔）相比时，在颜色测量方面未观察到显著差异（p > 0.05）。然而，修复前后颈部三分之一处的ΔE值高于修复后颈部和中三分之一处比较时观察到的值。18个月后，五个修复体在边缘适应性或边缘变色方面表现出极小差异（p > 0.05）。在所有其他标准中，包括固位率，在18个月复查时未检测到变化。
在NCCL中使用单色调树脂复合材料7天后与多色调树脂复合材料相比，颜色匹配效果相同。总体而言，所有结果在基线和18个月后临床评分均非常好（FDI）。
在NCCL中可推荐使用单色调树脂复合材料，因为它能够简化修复程序并保持优异的临床性能。
RBR - 8txr4fw：2022年5月26日。
