灭菌对两种不同的旋转NiTi仪器切割效率的影响 (体外研究)
Merna Mamdouh Botros1, Kariem Mostafa ElBatouty2, Tariq Yehia Abdelrahman2
1Endodontics, Faculty of Dentistry, Ain Shams University, Cairo, Egypt. mernabotros@dent.asu.edu.eg.
灭菌会影响- (NiTi) 牙科旋转文件的切割效率. 消毒的ProTaper Next (PTN) 文件在冠状动脉上表现更好,而非消毒的Mani Jizai (Jz) 文件在线上表现更好.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
背景情况:
- 牙科旋转仪器对于根管程序至关重要.
- 评估- (NiTi) 旋转文件的性能对于内牙成功至关重要.
- 两个NiTi文件系统,Mani Jizai (Jz) 和Dentsply ProTaper Next (PTN),进行了比较.
研究的目的:
- 评估和比较两个NiTi牙科旋转文件系统的切割效率.
- 为了研究杀菌对这些文件的切割性能的影响.
- 在各种通道条件下评估文件性能.
主要方法:
- 总共使用了80个NiTi文件 (40 Jz, 40 PTN).
- 切割效率是通过体积变化 (去除牙体积) 来衡量的.
- 档案被测试在提取的上牙筋distobuccal根,与测试前绝育的一半.
主要成果:
- 消毒的PTN文件在5毫米深度显示出更好的性能.
- 在10mm时没有观察到显著的性能差异.
- 消毒的PTN文件在15毫米深处的效果低于非消毒的Jz文件.
结论:
- 灭菌和热处理显著影响NiTi旋转文件的切割效率.
- 这些效应在根通道的冠状和顶部部分特别明显.
- 了解这些因素对于优化内牙治疗结果至关重要.
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