应用锥形束CT和根尖片评估工作长度对根管治疗疗效的影响

上海口腔医学 ›› 2014, Vol. 23 ›› Issue (6): 708-712.

应用锥形束CT和根尖片评估工作长度对根管治疗疗效的影响

赵丽琴, 许辛夷

常州市口腔医院口腔内科,江苏常州 213003

收稿日期:2014-03-18 修回日期:2014-06-01 出版日期:2014-12-20 发布日期:2015-01-08
通讯作者: 许辛夷,Tel:0519-86682004;E-mail:xxy7956@sina.com E-mail:2608065558@qq.com
作者简介:赵丽琴（1972-）,女,硕士,副主任医师
基金资助:
江苏省常州市科技计划项目（CJ20130043）

Influence of root canal working length on the clinical effect evaluated by periapical radiography and cone-beam computed tomography

ZHAO Li-qin, XU Xin-yi

Department of Endodontics, Changzhou Stomatology Hospital. Changzhou 213003, Jiangsu Province, China

Received:2014-03-18 Revised:2014-06-01 Online:2014-12-20 Published:2015-01-08
Supported by:
Science and Technology Project of Changzhou City (CJ20130043)

摘要/Abstract

摘要： 目的：应用锥形束CT（cone-beam computed tomography, CBCT）和根尖片研究工作长度对根管治疗疗效的影响。方法：利用CBCT和根尖片评估503个做过根管充填的牙根管。依据影像学上的根尖孔点和充填材料末端的距离将其分为4组,分别是：①大于1 mm、小于2 mm;②小于1 mm;③超出根尖孔;④恰到根尖孔。采用SPSS13.0软件包对数据进行χ²检验。结果：在前牙、前磨牙和磨牙的根管治疗中,根管充填距离根尖孔1~2 mm,根尖片显示分别占88%、89.3%和95%;CBCT显示的结果则分别是70%、73.7%和79%。无论哪一种诊断方法,磨牙出现根尖周炎的概率均显著高于其他牙。结论：各种工作长度的根管充填都能检测到根尖周炎,应用CBCT进行检查,能更好地评估根管治疗疗效。

关键词: 根尖周炎, 锥形束CT, 工作长度, 根尖片, 根管充填

Abstract: PURPOSE: The verification of the best length of root canal instrumentation and obturation is still controversial in endodontics. The purpose of this study was to determine the influence of root canal working length on the clinical effect evaluated by periapical radiography and cone-beam computed tomography (CBCT). METHODS: A total of 503 root canal obturations were evaluated by using periapical radiography and CBCT. Distances from the radiographic apex to the tip of filling material were measured and classified as 1-2 mm, less than 1 mm, beyond apex, and at the apex. Odds ratio, confidence intervals, and Chi-square test were used for statistical analyses with SPSS 13.0 software package. RESULTS: Periapical radiographs showed that root canal obturations were 1-2 mm short of the apex in 88%, 89.3%, and 95% of the anterior teeth, premolars, and molars, respectively. CBCT images showed obturations had the same length in 70%, 73.7%, and 79% of anterior teeth, premolars, and molars, respectively. The frequency of AP was significantly greater in molars than in the other tooth, regardless of diagnostic tools. AP was detected more frequently when CBCT was used. CONCLUSIONS: AP is detected at all lengths of root canal obturation. The analysis of diagnostic methods show that AP is detected more frequently using CBCT.

Key words: Apical periodontitis, Cone-beam computed tomography, Root canal working length, Periapical radiography, Root canal obturation

中图分类号:

R781.08

赵丽琴, 许辛夷. 应用锥形束CT和根尖片评估工作长度对根管治疗疗效的影响[J]. 上海口腔医学, 2014, 23(6): 708-712.

ZHAO Li-qin, XU Xin-yi. Influence of root canal working length on the clinical effect evaluated by periapical radiography and cone-beam computed tomography[J]. Shanghai Journal of Stomatology, 2014, 23(6): 708-712.

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