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山东大学学报(医学版) ›› 2013, Vol. 51 ›› Issue (06): 100-102.

• 临床医学 • 上一篇    下一篇

21mm机用镍钛锉在后磨牙根管治疗中的应用

徐冬梅   

  1. 济南市口腔医院牙体牙髓病科,  济南 250001
  • 收稿日期:2013-02-17 出版日期:2013-06-10 发布日期:2013-06-10
  • 通讯作者: 徐冬梅,E-mail:xudongmei126@126.com

Application of 21 mm nickeltitanium rotary files in root canal therapy for posterior molars

XU Dong-mei   

  1. Department of Endodontics, Jinan Stomatology Hospital, Jinan 250001, China
  • Received:2013-02-17 Online:2013-06-10 Published:2013-06-10

摘要:

目的   评价21mm长度ProTaper机用镍钛器械用于后磨牙根管预备的临床疗效。方法   选择临床需要根管治疗的后磨牙病患者198例,198颗患牙,随机分为两组:PT组使用21mm长度ProTaper机用镍钛锉、冠向下法预备根管;K锉组使用手动不锈钢K锉、步退法预备根管。两组均采用冷侧压法充填根管,摄片比较两组根管充填质量。记录根管预备术后疼痛反应和根管充填情况。结果   PT组预备术后疼痛反应明显低于K锉组(PT组反应发生率为3.03%,K锉组为18.18%);根管充填情况明显优于K锉组(PT组适充发生率92.53%,K锉组为85.16%)。结论   21mm ProTaper机用镍钛锉应用于后磨牙根管治疗,能使根管预备术后疼痛反应明显减轻,根管充填效果满意。

关键词: 根管治疗;ProTaper机用镍钛锉;根管预备;后磨牙

Abstract:

Objective   To clinically evaluate the root canal preparation of posterior molars by 21mm-length ProTaper nickel-titanium rotary instruments. Methods   A total of 198 patients (198 posterior molars) requiring root canal therapy were randomly divided into two groups: 21mm-length ProTaper nickel-titanium rotary files and crown-down technique were used in PT group, and stainless steel K-files and step-back technique were used in K-files group. All the root canals were obturated with lateral condensation method. The quality of obturation was determined by radiographs. The pain reaction after root canal preparation and the root canal filling were recorded. Results   The pain reaction after preparation therapy was less in PT group(3.03%) than in K-files group(18.18%). The reasonable filling ratio was significantly higher in PT group(92.53%) than in K-files group(85.16%). Conclusion   Twenty-one mmlength ProTaper nickel-titanium rotary files can alleviate the pain caused by root canal preparation in the root canal therapy of posterior molars, and the satisfactory results of root canal filling can be achieved as well.

Key words: Root canal therapy; ProTaper nickeltitanium rotary files; Root canal preparation; Posterior molars

中图分类号: 

  • R781.3
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