空气中的颗粒磨损对二步通用粘合剂牙粘合效能的影响
R Q Ramos1, M Peumans2, B Mercelis3
1Joint Ph.D. student at KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT - Biomaterials Research Group & UZ Leuven (University Hospitals Leuven), Dentistry, Kapucijnenvoer 7, 3000 Leuven, Belgium and at UFSC (Universidade Federal de Santa Catarina), SC, Brazil.
Journal of dentistry
|March 10, 2024
概括
空气磨损/抛光对于牙粘合是安全的,使用特定的粉末,如二碳酸和生物活性玻璃增强粘合强度,当与G2 Bond Universal在蚀刻和冲洗模式下使用时. 这种方法提供了一个可靠的替代品,用于牙科修复传统的切.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 粘合式牙科 粘合式牙科
背景情况:
- 表面准备对于牙粘合剂粘合强度至关重要.
- 空气中的颗粒磨损 (APA) 是机械制备的替代方案,但它对牙结合强度的影响需要研究.
- G2 Bond Universal (G2B) 是一种多功能牙粘合剂,用于蚀刻和冲洗 (E&R) 和自蚀刻 (SE) 模式.
研究的目的:
- 为了评估不同空气磨擦/抛光粉对G2 Bond Universal to dentin微拉伸键强度 (μTBS) 的影响.
- 为了比较G2B在E&R和SE模式中的粘合效率,在准备好的牙表面上.
- 评估APA后衰老 (热循环) 对键强度的影响.
主要方法:
- 用6种不同的粉末 (氧化,三氧化,碳酸,生物活性玻璃) 制备Dentin表面.
- 在E&R和SE模式中应用了G2 Bond Universal,随后进行了复合树脂积累.
- 样品通过热循环老化,并立即和老化后测量微拉伸键强度.
主要成果:
- 使用二碳酸 (SB,SB) 和生物活性玻璃 (BG) 的空气抛光在E&R模式下使用G2B时显著增加了结合强度.
- 使用氧化 (AO29) 的空气磨损在SE模式下显著降低了结合强度.
- 老化通常不会影响键强度,除了在SE模式下AO29和AT处理,强度下降.
结论:
- 对于牙与G2B的结合,APA通常是安全的,特定的粉末增强了结合强度.
- 使用G2B的蚀刻和冲洗 (E&R) 模式是空气磨损/抛光牙的首选.
- 生物活性玻璃空气抛光显示出改善牙结合强度在E&R和SE模式中的希望.
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