临床使用后超弹性-电线的特性
Inés Alcaraz1, Javier Moyano1, Ariadna Pàmies1
1Department of Orthodontics, School of Dentistry, Universitat Internacional de Catalunya, Sant Cugat del Vallés, 08195 Barcelona, Spain.
Materials (Basel, Switzerland)
|August 26, 2023
概括
- (NiTi) 弧线在临床使用和灭菌后表现出不同的超弹性特性和力量. 一些品牌,如GC和EURO,失去了机械性能,而其他品牌,如GAC,3M和FOR,在消毒后恢复了它们.
科学领域:
- 材料科学 材料科学 材料科学
- 生物材料工程 生物材料工程
- 矯正牙科 矯正牙科是一種矯正牙科.
背景情况:
- - (NiTi) 弧线由于其超弹性特性,在正牙科中至关重要.
- 在临床使用和灭菌后,了解NiTi弧线的长期机械行为对于治疗的可预测性至关重要.
研究的目的:
- 来自不同制造商的NiTi弧线在临床服务和灭菌后评估和量化其超弹性质的变化.
- 为了比较不同品牌NiTi弧线的机械性能和回收.
主要方法:
- 来自五家制造商的十个NiTi弧线被测试,使用ISO 14841:2006的三点曲试验.
- 在加载和卸载周期期间生成负载偏移曲线,以评估超弹性和力传递.
- 进行了统计分析,以确定机械性质的显著差异 (p < 0.001).
主要成果:
- 在不同品牌的NiTi弧线线中观察到超弹性和力量的显著变化.
- 在临床使用三个月后,FOR弧线在更长的激活期内显示出更高的力传递.
- GC,EURO和FOR弧线显示机械性能恶化,GC在使用后表现出增加的力. GAC,3M和FOR在灭菌后恢复了超弹性,与欧元弧线不同.
结论:
- 尼弧线的超弹性特性和力施加受到制造商,临床使用和绝育的显著影响.
- 某些NiTi弧线品牌在长时间的临床应用和重复的灭菌周期后,机械完整性和恢复性降低.
- 在为可预测的临床结果选择NiTi弧线时,正牙医应考虑特定品牌的性能变化.
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