应用方式对增加结合强度的影响 自蚀刻和通用粘合系统的寿命延长,以制乳
D L Falcione1, C E Pena2, C P Turssi3
1Daniel Locheider Falcione, PhD student, Faculdade São Leopoldo Mandic, São Paulo, Brazil.
Operative dentistry
|November 29, 2023
概括
选择性乳蚀刻提高了FL-Bond II粘合剂对乳的粘合强度,但降低了所有测试的自我蚀刻和通用粘合系统的寿命. 应用模式显著影响微剪断键强度的寿命.
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
- 生物材料工程 生物材料工程
背景情况:
- 优化粘合性能对于持久的牙科修复至关重要.
- 了解应用技术对粘合键强度的影响,对于临床成功至关重要.
- 自蚀刻和通用粘合剂提供各种临床益处,需要对其应用模式进行评估.
研究的目的:
- 调查不同的应用方式如何影响自蚀刻和通用合剂对质的短期结合强度和寿命.
- 分析由于各种应用策略而产生的故障模式和面膜微观形态.
- 为了在不同的应用协议下比较特定粘合剂系统的微剪粘合强度.
主要方法:
- 来自第三牙的90个面被根据三个应用模式 (制造商推,双重时间,选择性蚀刻) 和三个粘合剂系统 (Clearfil SE Bond,FL-Bond II,Futurabond U) 分为9个组.
- 在24小时和180天后,在模拟体液中储存后,测试了微切断键强度.
- 使用立体显微镜评估故障模式,并通过扫描电子显微镜分析牙的微形态.
主要成果:
- 与对照组相比,选择性质蚀刻在两个时间点都显著增加了FL-Bond II键强度,但在180天的时间里,所有系统的键强度寿命都减少了.
- 对于不同应用模式的Clearfil SE Bond和Futurabond U,没有发现债券强度的显著差异.
- 观察到的主要故障模式是粘合器故障,故障模式和面膜处理之间没有显著的关联.
结论:
- 选择性乳蚀刻可以提高某些粘合剂的即时粘合强度,但可能会损害长期耐用性.
- 应用模式显著影响了微切断粘合强度,自蚀刻和对质的通用粘合剂的寿命.
- 临床应用方案应考虑特定的粘合剂系统和所需的寿命,以优化粘合强度.
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