固化模式和老化对通用粘合剂在冠状牙和根牙中的粘合性能的影响
Hoda Saleh Ismail1, Ashraf Ibrahim Ali2, Mohamed Elshirbeny Elawsya2
1Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Algomhoria Street, PO Box 35516, Mansoura, Aldakhlia, Egypt. hoda_saleh@mans.edu.eg.
BMC oral health
|October 5, 2024
概括
衰老会对树脂复合材料的粘合强度产生负面影响,特别是对根牙上的光固化粘合剂. 双固化和化学固化粘合剂的性能相似,但建议在较长的固化距离下对光固化系统保持谨慎.
科学领域:
- 牙科材料科学 牙科材料科学
- 粘合式牙科 粘合式牙科
- 恢复性牙科 恢复性牙科
背景情况:
- 评估树脂复合材料的微拉伸键强度 (μTBS) 对牙科修复寿命至关重要.
- 了解不同的固化方法 (光,化学,双) 和老化如何影响各种牙区域的结合强度至关重要.
- 纳米泄漏和治愈程度是粘合剂接口完整性和恢复成功的关键指标.
研究的目的:
- 为了比较树脂复合材料的微拉伸键强度 (μTBS),这些树脂复合材料与使用不同粘合剂固化模式的中冠状和近端根牙结合.
- 评估衰老对这些修复系统的结合强度,纳米泄漏和治愈程度的影响.
- 根据牙区域和固化条件提供临床指导,以选择粘合剂.
主要方法:
- 准备了84个牙,牙样本分为中冠状和近根区域.
- 应用了使用光固化,化学固化和双固化粘合剂的修复系统.
- 微拉力键强度 (μTBS) 被测试在即时和老化后;纳米泄漏和治愈程度也被评估.
主要成果:
- 衰老显著减少了μTBS,并在所有组中增加了纳米泄漏 (p < 0.001).
- 靠近的根牙比中冠牙的μTBS更低,除了经过老化后的双固化粘合剂.
- 在较长的固化距离 (p < 0.05) 上,光固化粘合剂对老化的近接根牙膜的结合最差.
结论:
- 所有测试的修复系统都受到衰老的不利影响,区域牙会影响粘合特性.
- 化学粘合剂和双固化粘合剂表现出类似的粘合能力.
- 当固化距离超过3毫米时,临床医生必须谨慎使用光固化粘合剂,特别是在近接根部区域.
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