改进超弹性正牙弧线的机械性能和潜在临床影响:一项观察性研究
Dilip Srinivasan1, Raj Kumar Krishnan2
1Orthodontics and Dentofacial Orthopaedics, SRM Dental College and Hospital, Chennai, IND.
Cureus
|December 7, 2023
概括
与传统的- (NiTi) 和铜-- (CuNiTi) 线相比,改进的超弹性牙科弧线显示了减少摩擦和优越的机械性能. 这些发现表明,在正牙治疗中,低歇斯底里超弹性弧线的临床潜力得到了增强.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物材料科学 生物材料科学
- 材料工程 材料工程 材料工程
背景情况:
- 超弹性材料在正牙科中提供持续的力传递.
- 传统超弹性材料的高歇斯底里和摩擦限制了它们作为弧线的使用.
- 需要改进具有增强机械性能的超弹性正牙弧线.
研究的目的:
- 研究改进的超弹性正牙弧线的机械性能和摩擦阻力.
- 将改进的弧线与传统的- (NiTi) 和铜-- (CuNiTi) 弧线进行比较.
- 评估这些弧线在牙科的临床含义.
主要方法:
- 测试了低hysteresis超弹性,NiTi和CuNiTi弧线 (0.016 x .022英寸).
- 测量摩擦性能使用具有定制Jig的通用测试机器.
- 在4mm时评估了拉伸强度,压力强度和偏向力.
主要成果:
- 改进的超弹性电线表现出最少的摩擦电阻.
- 在弧线和支架类型之间发现了摩擦的显著差异 (p<.05).
- 在改进的超弹性电线中观察到最低的偏向力和更好的拉伸/压缩强度.
结论:
- 低歇斯底里超弹性弧线显示金属支架的摩擦力低于陶支架.
- 改进的超弹性弧线具有更高的抗拉强度和更低的偏向力.
- 这些特性使得低hysteresis超弹性弧线在正牙应用中具有优势.
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