探索温度敏感的NiTi仪器中的形态变换,以及实时的内温度动态.
Amre R Atmeh1, Taher Al Omari2, Abdullah F AlQifari3
1Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, United Arab Emirates.
International endodontic journal
|May 28, 2024
概括
- (NiTi) 内牙仪表表现出不同的形状变化与温度. 内温度稳定在灌溶液温度以下,强调在体外试验中需要考虑灌温度.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
背景情况:
- - (NiTi) 仪器在内牙治疗中至关重要.
- 了解它们的热力学特性对于临床成功至关重要.
- 以前的研究还没有完全阐明根管治疗期间体内温度的动态.
研究的目的:
- 在不同温度下研究三种温度敏感的NiTi仪器 (XP-Endo Shaper,Finisher,Finisher-R) 的形态变化.
- 在根管程序期间实时进行内温度波动的体内分析.
主要方法:
- 使用数字成像,对从22°C到45°C加热的NiTi仪器进行形态测量分析.
- 使用K型热电偶探头实时体内测量人类牙中的通道内温度.
- 在用22°C和45°C的溶液灌后记录口腔内和口腔内温度.
主要成果:
- 在XP-Endo的成形仪,成形仪和成形仪R仪表中,从26.9°C到31.5°C之间展现出明显的形状转换.
- 完全转换导致长度从0.43mm减少到1.15mm.
- 内温度稳定在33°C左右,不管最初的灌溶液温度 (22°C或45°C).
结论:
- 尼蒂仪表显示温度依赖的形态变化.
- 在灌溶液温度以下达到内温度平衡.
- 在实验室内对牙内仪器的评估应考虑灌溶液温度的影响.
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