3种镍钛器械预备弯曲根管产生垂直向压力的比较

doi:10.13701/j.cnki.kqyxyj.2019.10.016

口腔医学研究 ›› 2019, Vol. 35 ›› Issue (10): 975-978.DOI: 10.13701/j.cnki.kqyxyj.2019.10.016

3种镍钛器械预备弯曲根管产生垂直向压力的比较

夏智敏¹, 吴昌哲¹, 彭彬^2*

1. 武汉大学医学职业技术学院口腔系湖北武汉 430060;
2. 武汉大学口腔医学院牙体牙髓科湖北武汉 430079

收稿日期:2019-01-16 出版日期:2019-10-28 发布日期:2019-10-22
通讯作者: 彭彬,E-mail:phs301@whu.edu.cn
作者简介:夏智敏(1967~ ),女,湖北人,副教授,硕士,研究方向:牙体牙髓病学。
基金资助:
湖北省自然科学基金(编号:2014CFB468)

Comparison of Apically Vertical Load Induced by Three NiTi Instruments during Curved Canal Shaping in Extracted Teeth.

XIA Zhimin¹, WU Changzhe¹, PENG Bin^2*

1. Department of Stomatology, Vocational School, Wuhan University, Wuhan 430060, China;
2. Department of Endodontics, School of Stomatology, Wuhan University, Wuhan 430079, China.

Received:2019-01-16 Online:2019-10-28 Published:2019-10-22

摘要/Abstract

摘要： 目的:比较3种机用镍钛器械预备弯曲根管产生的根向力。方法:选择30颗离体单根管的下颌前磨牙,弯曲度10°~20°,随机分成3组,分别以ProTape Next(PTN)、ProTaper Universal(PTU)、M3器械预备根管,测量并比较预备根管产生的根向压力和时间。结果:PTN组的压力峰值显著小于其他两组(P<0.05),PTU组和M3组比较差异无统计学意义。结论:PTN组镍钛器械预备弯曲根管产生的根向压力较小,安全性更高。

关键词: 镍钛器械, 弯曲根管, 根向压力

Abstract: Objective: To compare the apically vertical load induced by three NiTi instruments during canal shaping of extracted teeth. Methods: Thirty extracted mandibular premolar teeth which had single canal with a curvature between 10-20 degree were shaped with ProTape Next (PTN; Dentsply Maillefer, Switzerland), ProTaper Universal (PTU,Dentsply Maillefer, Switzerland), and M3 (China) systems (n=10 for each system). During root canal shaping, time and apically vertical load were recorded. Results: PTN group had the lowest apically vertical load, while PTU group and M3 group had no significant difference. Conclusion: ProTaper next NiTi instrument system (PTN) had the lowest values of apically vertical load while shaping, which may attributed to its safety.

Key words: NiTi instruments, curved root canal, apically vertical load

夏智敏, 吴昌哲, 彭彬. 3种镍钛器械预备弯曲根管产生垂直向压力的比较[J]. 口腔医学研究, 2019, 35(10): 975-978.

XIA Zhimin, WU Changzhe, PENG Bin. Comparison of Apically Vertical Load Induced by Three NiTi Instruments during Curved Canal Shaping in Extracted Teeth.[J]. Journal of Oral Science Research, 2019, 35(10): 975-978.

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3种镍钛器械预备弯曲根管产生垂直向压力的比较

Comparison of Apically Vertical Load Induced by Three NiTi Instruments during Curved Canal Shaping in Extracted Teeth.

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