田陶冠的断裂负荷:表面处理和老化的影响
Andrea Coldea1, Bogna Stawarczyk2, John Meinen2
1Department of Prosthetic Dentistry, University Hospital, LMU Munich, Munich, Germany. andrea.coldea@med.uni-muenchen.de.
Clinical oral investigations
|January 8, 2025
概括
空气中的颗粒磨损是一种可行的替代水酸蚀刻的可行替代方案,用于田陶冠,保持与蚀刻相似的断裂负载,特别是在老化后. 这种方法为形表面处理提供了潜在的替代方案.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料是一种生物材料.
- 陶修复 陶修复 陶修复
背景情况:
- 在粘合地陶 (FEL) 修复中,英塔利奥表面处理非常重要.
- 酸 (HF) 蚀刻是一种常见但潜在危险的方法.
- 需要使用其他表面处理方法来提高安全性和有效性.
研究的目的:
- 为了比较空气中的颗粒磨损与HF蚀刻用于FEL皇冠形表面.
- 评估支柱材料 (CoCrMo与聚合物) 和人工老化对断裂负荷 (FL) 的影响.
- 为了确定空气中的颗粒磨损是否可以取代高频蚀刻.
主要方法:
- 菲尔兹帕陶冠经过了形表面处理:空气磨损 (25μm Al2O3),高频蚀刻 (60s),或没有处理.
- 皇冠被粘合到CoCrMo和聚合物支柱上.
- 人工老化前后测量骨折负荷 (120万次口周期);使用韦布尔模量,ANOVA和等效测试分析数据.
主要成果:
- 对于CoCrMo支柱,老化影响了FL,但预处理没有;磨损和蚀刻最初是相当的.
- 对于聚合物支柱,预处理和老化显著影响了FL.
- 蚀刻降低了聚合物支柱的初始FL;老化降低了未经处理的皇冠的FL,而磨损和蚀刻没有老化作用.
结论:
- 空气中的颗粒磨损与FEL皇冠内角表面的HF蚀刻相当,并且不会对断裂负荷产生负面影响.
- 预处理和老化效应的有效性在CoCrMo和聚合物支柱之间有所不同.
- 空气中的颗粒磨损是一种有前途的替代方案,用于在粘合之前对FEL冠状的内角表面处理.
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