修复协议对复合树脂结合强度的影响
Ana Laura Rezende Vilela1, Amanda das Graças Soares2, Alexandre Coelho Machado3
1Department of Operative Dentistry and Dental Materials, School of Dentistry, Federal University of Uberlândia, Uberlândia, MG, Brazil.
Odontology
|September 14, 2024
概括
通用粘合剂系统 (UA) 在人工老化后表现出优越的粘合强度,与预化 (PH) 和立即化 (IH) 烯剂相比. 在老化后,PH的结合强度显著降低.
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
- 生物材料是一种生物材料.
背景情况:
- 牙复合修复需要持久的修复方案.
- 老化过程可能会损害粘合剂的完整性.
- 了解不同粘合剂系统的长期性能对于临床成功至关重要.
研究的目的:
- 评估人工老化对复合树脂不同修复协议的键强度的影响.
- 为了在老化和未老化条件下比较通用粘合剂系统 (UA) 与西兰合剂 (预化 (PH) 和立即化 (IH)) 的有效性.
主要方法:
- 三种粘合剂系统 (UA,PH,IH) 进行了测试. 一半的样品进行了人工老化 (30天的温度为48°C).
- 复合树脂基板被准备,老化,喷砂和清洁. 应用了维修协议,随后进行光激活和复合气形成.
- 微切割键强度 (μSBS) 和故障模式分析在24小时后进行. 统计分析包括双向ANOVA和克鲁斯卡尔-瓦利斯试验.
主要成果:
- 在老化后,UA表现出最高的债券强度,而PH表现出明显较低的结果. IH显示没有显著差异 (p=0.157).
- 在非老化修复协议之间没有观察到债券强度的显著差异 (p>0.05).
- UA和IH的老化和非老化表现相似,而PH的债券强度在老化后显著下降.
结论:
- 与某些西兰合剂相比,通用合剂系统 (UA) 在老化条件下提供了更稳定的修复解决方案.
- 预化 (PH) 锡兰剂易受人工老化降解,导致结合强度降低.
- 立即化 (IH) 剂和UA在复合树脂修复方面显示出有前途的耐用性,IH在未老化时在基质中表现出更具凝聚力的故障.
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