多波LED的局部辐射是否会影响通用粘合剂的粘合性能?
E Sutil1, M Wendlinger2, Afm Cardenas3
1Department of Restorative Dentistry, Ponta Grossa State University, Ponta Grossa, Paraná.
Journal of dentistry
|January 18, 2026
概括
不同的LED光波长会影响通用粘合剂对牙的粘合强度. 405nm波长显著降低了一个粘合剂的粘合强度和转换,与蓝光不同,表明潜在的粘合妥协.
科学领域:
- 牙科材料科学 牙科材料科学
- 聚合物化学 聚合物化学
- 生物材料工程 生物材料工程
背景情况:
- 万能粘合剂广泛用于牙粘合.
- 多波LED固化灯发射各种波长,包括紫 (405nm) 和蓝 (445-465nm).
- LED灯光的光谱分布可以影响牙粘合剂的光聚合.
研究的目的:
- 为了评估不同LED固化光波长 (405nm,445nm,465nm) 对通用粘合剂的影响.
- 评估与牙结合的通用粘合剂的微拉伸键强度 (μTBS),纳米泄漏率 (NL) 和转换度 (DC).
- 在不同的光固化条件下比较两种通用粘合剂系统 (Ambar Universal APS和Scotchbond Universal) 的性能.
主要方法:
- 使用了80个人的牙,每个象限被分配给一个特定的波长 (405nm,445nm,465nm) 和粘合系统 (Ambar Universal APS,Scotchbond Universal).
- 粘合剂的应用采用了蚀刻和冲洗 (ER) 或自蚀刻 (SE) 模式.
- 使用Valo单位在1400mW/cm2进行光固化,并测试粘合光束的μTBS,NL和DC.
主要成果:
- 对于两种粘合剂,在445nm和465nm波长之间没有发现μTBS,NL或DC的显著差异.
- 苏格兰波特通用 (SBU) 显示显着较低的μTBS和DC,和更高的NL当治疗405nmLED与445nm和465nm相比.
- 安巴尔通用APS (AMU) 显示出比SBU更高的μTBS和DC,无论波长如何. 应用模式 (ER与ER相比) SE) 并没有显著影响结果.
结论:
- 405nm波长可能会对包含常规光启动器的通用粘合剂的粘合性能产生负面影响.
- 在使用某些通用粘合剂时,多波LED中的不均的光谱分布可能会损害牙粘合.
- 临床医生应该意识到LED固化光的光谱特征对粘合剂性能的潜在影响.
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