School of Dentistry, Oral and Craniofacial Sciences, University of Missouri-Kansas City, Kansas City, MO, USA.
Department of Restorative Dentistry, School of Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil; School of Dentistry, Tuiuti University, Curitiba, Brazil.
Dent Mater. 2022 Jan;38(1):68-78. doi: 10.1016/j.dental.2021.10.012. Epub 2021 Nov 24.
This study aimed to evaluate the effect of prolonging polymerization time on the 18 months clinical performance of a universal adhesive system used as etch-and-rinse (ER) and self-etch (SE).
140 restorations were randomly placed in 35 subjects according to the following groups: ER10 (light-curing for 10 s); ER40 (light-curing for 40 s); SE10 (light-curing for 10 s) and; SE40 (light-curing for 40 s/1200 mW/cm). A resin composite was placed incrementally. The restorations were evaluated at baseline and after 18 months by using the FDI criteria. The following outcomes were evaluated: marginal staining, marginal adaptation, spontaneous post-operative sensitivity and recurrence of caries. The differences among the groups were calculated using Friedman repeated measures analysis of variance rank (α = 0.05).
After 18 months the retention/fracture rates were 88.9% (95%CI 74.1-95.6%) for ER10, 94.3% (95%CI 91.4-98.5%) for ER40, 77.2% (95%CI 60.1-87.9) for SE10 and 97.2% (95%CI 85.5-99.9%) for SE40. A significant difference was detected in the retention rate when SE10 was compared to the SE40 (p = 0.01). Also, ER40 showed a significant improvement of the marginal adaptation when compared to ER10 (p = 0.01).
This is the first study that demonstrates an improvement in the clinical performance of universal adhesive systems in non-carious cervical lesions when prolonged light-cured was applied.
本研究旨在评估延长通用粘结剂系统光固化时间对其 18 个月临床性能的影响，该系统用于酸蚀-冲洗（ER）和自酸蚀（SE）。
根据以下分组，将 140 个修复体随机放置在 35 名受试者中：ER10（光固化 10s）；ER40（光固化 40s）；SE10（光固化 10s）和 SE40（光固化 40s/1200mW/cm）。分层放置树脂复合材料。使用 FDI 标准，在基线和 18 个月时对修复体进行评估。评估的结果包括边缘染色、边缘适应性、自发性术后敏感和龋齿复发。使用 Friedman 重复测量方差秩分析（α=0.05）计算组间差异。
18 个月后，ER10 的保留/断裂率为 88.9%（95%CI 74.1-95.6%），ER40 为 94.3%（95%CI 91.4-98.5%），SE10 为 77.2%（95%CI 60.1-87.9%），SE40 为 97.2%（95%CI 85.5-99.9%）。当 SE10 与 SE40 比较时，保留率存在显著差异（p=0.01）。此外，与 ER10 相比，ER40 的边缘适应性有显著改善（p=0.01）。
这是第一项研究，表明在非龋性颈病变中，延长通用粘结剂系统的光固化时间可提高其临床性能。
