口腔医学研究

口腔医学研究 ›› 2019, Vol. 35 ›› Issue (4): 331-334.DOI: 10.13701/j.cnki.kqyxyj.2019.04.007

• 龋病牙髓病学研究 • 上一篇    下一篇

不同镍钛器械在弯曲根管预备中的比较

江波, 黄静*   

  1. 南方科技大学医院口腔科 广东 深圳 518055
  • 收稿日期:2018-07-16 出版日期:2019-04-28 发布日期:2019-04-23
  • 通讯作者: 黄静,E-mail:1967893379@qq.com
  • 作者简介:江波(1963~ ),男,湖北安陆人,副主任医师,本科,主要从事口腔内科临床治疗工作。

Comparison of Different Kinds of Ni-Ti Instruments in Curved Root Canals

JIANG Bo, HUANG Jing*   

  1. Department of Stomatology of Southern University of Science and Technology Hospital, Shenzhen 518055, China
  • Received:2018-07-16 Online:2019-04-28 Published:2019-04-23

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摘要： 目的: 评价Protaper Next、Reciproc、以及二者联合运用Pathfile预备后牙弯曲根管的效果。方法: 选取本院2016年9月~2018年1月期间就诊需行根管治疗的后牙弯曲根管80例,随机分为4个试验组(每组各20例),分别采用Protaper Next、Reciproc、以及Protaper Next结合Pathfile、Reciproc结合Pathfile共4种方式进行根管预备,所有治疗根管记录单个根管预备时间、锥形束CT比照术前术后根管偏移的情况。结果: Reciproc组根管预备耗时最少,4种预备方式平均根管预备时间分别为(48.46±25.72) s、(21.67±11.23) s、(93.64±28.56) s和(71.23±18.78) s,存在统计学差异(P＜0.05);对于重度弯曲根管,Protaper Next、Reciproc是否联合运用pathfile进行预备的根管偏移量及轴中心率平均值存在统计学差异(P＜0.05)。结论: Protaper Next和Reciproc两种器械适用于所有中度弯曲根管,联合应用Pathfile预备重度弯曲根管,能更好保持原有根管形态,值得临床推广。

关键词: Protaper Next, Reciproc, Pathfile, 弯曲根管, 根管预备

Abstract: Objective: To evaluate the effect of curved canal preparation in posterior teeth using Protaper next (PN), Reciproc (R), Protaper next with Pathfile (PNP), and Reciproc with Pathfile (RP). Methods: From September 2016 to January 2018, eighty cases with curved canals of posterior teeth which need root canal therapy (RCT) were selected. The patients were randomly divided into four groups of 20 teeth each. The teeth canals were prepared using PN, R, PNP, and RP, respectively. All data including preparing time of root canals and Bias of root canals using CBCT to scan before and after preparation were recorded. Results: The group R spent the least time in preparation, and the average preparing time of four groups (PN, R, PNP, RP) were (48.46±25.72)s, (21.67±11.23)s, (93.64±28.56)s, and (71.23±18.78)s, respectively. Significant difference was found among four groups (P＜0.05). For severe degree curved root canals, compare the root canal deviation and the rates of axis center, difference was found between PN and PNP (P＜0.05), and between R and RP (P＜0.05). Conclusion: The PN and R are suitable for moderate degree curved root canals. When combined with Pathfile, these two instruments can result in significantly greater effect, especially in severe curved root canals.

Key words: Protaper next, Reciproc, Pathfile, Curved canals, Preparation of root canal