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In Process Citation

机译：过程中引用

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Objective. This study investigated the effect of light-curing modes on the microleakage of cervical resin composite restorations. Methods. Eighty wedge-shaped cervical cavities, C-factor approximately 1.3, were prepared on the labial surface of bovine incisors. The cavities were treated with a two-step experimental self-etching primer adhesive system containing an antibacterial monomer (ABF), according to the manufacturer's instructions, and filled with a single increment of a hybrid resin composite. The restorations were allocated randomly into four groups of 20: Group 1-the restorations were light-cured for 40 s with a conventional light-curing unit (New Light VL-II); Group 2-the restorations were cured with Candelux using a two-step mode; Group 3-the restorations were cured with Astralis 7 using a ramping mode; Group 4-the restorations were light-cured for 3 s with a plasma arc light-curing unit (Wave Light). Half of the specimens from each group were subjected to thermocycling (5-60 degrees C, 15 sdwell time, 5000 cycles) prior to immersion in 0.5% basic fuchsin. The teeth were sectioned and the degrees of dye penetration were scored. The data were analyzed with either the Kruskal-Wallis test or the Mann-Whitney [Formula: see text] -test [Formula: see text] Results. No significant differences were found in the microleakage scores among the light-curing modes used. The restorations tended to display more microleakage when they were subjected to thermocycling, but the differences were not statistically significant. Conclusions. These findings suggest that light-curing modes may have no effect on the microleakage of cervical cavities with a small C-factor, as is the case in this study.
机译：目的。这项研究调查了光固化方式对宫颈树脂复合修复体微渗漏的影响。方法。在牛切牙的唇面准备了80个楔形宫颈腔，C因子约为1.3。根据制造商的说明，使用包含抗菌单体（ABF）的两步实验自蚀刻底漆胶粘剂系统处理型腔，并填充单增量的杂化树脂复合材料。将修复体随机分为4组，每组20个：第1组：使用常规光固化设备（New Light VL-II）将修复体光固化40 s;将其修复。第2组：修复体采用两步法用Candelux进行修复。第3组：修复体使用坡道模式用Astralis 7修复。第4组：用等离子弧光固化装置（Wave Light）将修复体光固化3秒。在浸入0.5％碱性品红之前，将每组样品的一半进行热循环（5-60摄氏度，15 sdwell时间，5000个循环）。将牙齿切成薄片，并对染料渗透程度进行评分。使用Kruskal-Wallis检验或Mann-Whitney检验数据[公式：参见文本] -test [公式：参见文本]结果。在所使用的光固化模式之间的微渗漏评分中没有发现显着差异。当进行热循环时，修复体倾向于表现出更多的微泄漏，但差异在统计学上并不显着。结论。这些发现表明，光固化模式可能对C因子小的宫颈腔的微渗漏没有影响，正如本研究的情况一样。

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