手动或旋转根管锉结合超声波对C型根管清洗率的影响

上海口腔医学 ›› 2014, Vol. 23 ›› Issue (4): 441-445.

手动或旋转根管锉结合超声波对C型根管清洗率的影响

王晶¹, 高艳¹, 王青山¹, 张燕¹, 荣丽¹, 王玖²

1.山东省滨州医学院附属医院口腔内科,山东滨州 256603;
2.山东省滨州医学院卫生管理学院卫生统计学教研室,山东滨州 256603

收稿日期:2013-07-09 出版日期:2014-08-20 发布日期:2014-10-20
通讯作者: 王晶,E-mail: wangjingsdbz@126.com
作者简介:王晶(1971-), 女, 硕士, 主治医师

Research on cleaning rate of the C-shaped canal treated by manual or rotary endodontic file combined with ultrasonic rinsing

WANG Jing¹, GAO yan¹, WANG Qing-shan¹, ZHANG yan¹, RONG Li¹, WANG Jiu²

1.Department of Oral Medicine, Affiliated Hospital of Binzhou Medical College. Binzhou 256603;
2.Department of Statistics, Health Management College of Binzhou Medical College. Binzhou 2566032, Shandong Province, China

Received:2013-07-09 Online:2014-08-20 Published:2014-10-20

摘要/Abstract

摘要： 目的:观察和评价手动不锈钢K型锉、ProTaper系统镍-钛旋转根管锉及是否联合使用超声波洗牙机冲洗C形根管的清洁效果,探索C形根管的最佳清洁方案。方法:选取50颗离体的下颌第二磨牙,随机分配至单纯K型锉清洁组、K型锉+超声波冲洗组、单纯ProTaper系统镍-钛旋转根管锉清洁组、ProTaper+超声波冲洗组和对照组,各10颗。经初步修形、清洁并经甲醛浸泡后染色。显微镜下观察和计算根管内坏死组织清洁率和削切面积,采用SPSS 17.0软件包对数据进行统计学分析。结果:处理组的根管清洁率显著高于对照组(P<0.05);各处理组中,根尖部的清洁率显著低于冠部和中部(P<0.05);E组(ProTaper+超声)的削切分数低于其他处理组;根管锉+超声波冲洗组的削切分数显著低于单纯根管锉组(P<0.05);管壁削切分数和清洁率存在负相关关系(r=-0.712,P=0.000)。经线性拟合,两者的依存关系为清洁率=98.325-4.325×管壁削切分数(R2=0.454,P<0.05)。结论:C形根管修形和清洁过程中,建议主根管处优先考虑选择ProTaper镍-钛旋转根管锉冲洗,联合超声波冲洗,效果更佳。

关键词: K型根管锉, ProTaper系统, 超声波, 根管冲洗, 清洁率

Abstract: PURPOSE: To evaluate the cleaning effect of the C-shaped canal treated by manual K file and ProTaper rotary endodontic file combined with ultrasonic cleaning, and find a better cleaning program for the C-shaped root canal. METHODS: Fifty mandibular second molars were randomly divided into 5 groups: K file group, K file + ultrasonic rinsing group, ProTaper group, ProTaper + ultrasonic rinsing group and the control group. After initial shaping and cleaning, the mandibular second molars were soaked in formalin and stained. Under microscopy, the cleaning rate of necrotic tissue and cutting area were observed and analyzed. The data was processed with SPSS 17.0 software package. RESULTS: The cleaning rates of the treated groups were significantly higher than that of the control group (P<0.05); In each treatment group, the cleaning rate of the apex was significantly lower than that of the crown and central part (P<0.05); The cutting score of ProTaper + ultrasonic cleaning group was lower than that of the other treatment groups; The cutting score of the K file + ultrasonic rinsing group was significantly lower than that of the K file group (P<0.05); The cutting score and cleaning rate were negatively correlated (r=-0.712, P=0.000 ), the linear regression was the cleaning rate =98.325-4.325 × wall cutting score (R2=0.454, P<0.05). CONCLUSIONS: In the process of shaping and cleaning of C-shaped canal, it is recommended that the ProTaper nickel-titanium rotary endodontic file should be chosen to clean the top of the taproot pipe and combined with ultrasonic rinsing to achieve better results.

Key words: K-type endodontic file, ProTaper, Ultrasound, Endodontic Irrigation, Cleaning rate

中图分类号:

R781.05

王晶, 高艳, 王青山, 张燕, 荣丽, 王玖. 手动或旋转根管锉结合超声波对C型根管清洗率的影响[J]. 上海口腔医学, 2014, 23(4): 441-445.

WANG Jing, GAO yan, WANG Qing-shan, ZHANG yan, RONG Li, WANG Jiu. Research on cleaning rate of the C-shaped canal treated by manual or rotary endodontic file combined with ultrasonic rinsing[J]. Shanghai Journal of Stomatology, 2014, 23(4): 441-445.

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