3种往复旋转单支镍钛器械预备人下颌标本切牙根管后牙根微裂形成的比较

doi:10.13481/j.1671-587x.20180123

吉林大学学报(医学版) ›› 2018, Vol. 44 ›› Issue (01): 121-125.doi: 10.13481/j.1671-587x.20180123

3种往复旋转单支镍钛器械预备人下颌标本切牙根管后牙根微裂形成的比较

孙颖, 王成坤, 周园园, 唐晓丽, 秦娇娇, 朱亚平, 焦珊

吉林大学口腔医院牙体牙髓病科, 吉林长春 130021

收稿日期:2017-07-12 出版日期:2018-01-28 发布日期:2018-01-24
通讯作者: 王成坤,教授,硕士研究生导师(Tel:0431-88975348,E-mail:wck1964@163.com) E-mail:wck1964@163.com
作者简介:孙颖(1991-),女,黑龙江省尚志市人,在读医学硕士,主要从事牙体牙髓病临床治疗方面的研究。
基金资助:
吉林省科技厅科技发展计划项目资助课题（20140414010GH）

Comparison of dentinal microcrack development after canal preparation with three kinds of reciprocating nickel-titaninm instruments in a cadaver model

SUN Ying, WANG Chengkun, ZHOU Yuanyuan, TANG Xiaoli, QIN Jiaojiao, ZHU Yaping, JIAO Shan

Department of Endodontics and Operative Dentistry, StomatologyHospital, Jilin University, Changchun 130021, China

Received:2017-07-12 Online:2018-01-28 Published:2018-01-24

摘要/Abstract

摘要： 目的：采用显微CT（Micro CT）观察3种往复旋转单支镍钛器械预备人下颌标本切牙根管后牙根微裂的形成情况，为临床上往复旋转单支镍钛器械的选择提供依据。方法：选取15个人下颌标本，共60颗单根下颌切牙，且均无牙根微裂，根据根管预备中所用镍钛器械的不同随机分为4组，每组15颗牙齿，以ProTaper Universal组为对照组，以Wave One组、Reciproc组和One File组为实验组。按厂家提供的使用说明书预备根管，Wave One镍钛锉、Reciproc镍钛锉和One File镍钛锉预备根管至25^#，ProTaper Universal镍钛锉预备根管至F2。根管预备后每组牙齿分别用Micro CT进行扫描，分析牙根微裂的发生情况。结果：与ProTaper Universal组比较，Wave One组、Reciproc组和One File组牙根微裂发生率明显降低（P<0.05）；Wave One组、Reciproc组和One File组牙根微裂发生率组间比较差异无统计学意义（P>0.05）。各组下颌切牙中牙根微裂纹均在根尖1/3处最为常见，其次为根中1/3。结论：根管预备过程易引起牙根微裂，需要重视镍钛器械的选择，3种往复旋转镍钛器械Wave One、Reciproc和One File根管预备后牙根微裂形成少，能降低根管治疗后牙根折裂风险。

关键词: 单支镍钛锉, 显微CT, 牙根微裂, 人下颌标本

Abstract: Objective: To observe the development of dentinal microcracks after root canal preparation with there kinds of reciprocating nickel-titaninm instruments using an in situ cadaver model by means of micro-computed tomography (Micro CT),and to provide the reference for their clinical application. Methods: A total of 15 mandible bone specimens having at least the anterior teeth (n=60)with single root were selected and there was no dentina microcrack, then they were randomly divided into 4 groups (n=15) according to the preparation protocol:Wave One,Reciproc,One File and ProTaper Universal groups,and ProTaper Universal was used as control group.The root canals were prepared up to 25# instruments in Wave One,Reciproc and One File groups and F2 instruments in ProTaper Universal groups. After the preparation procedures, the specimens were scanned by Micro CT again,and the number of dentinal microcracks were investigated and analyzed statistically. Results: Compared with ProTaper Universal group,the incidence rates in Wave One, Reciproc and One File groups were significantly reduced(P<0.05).There were no statistical differences in the incidence rates of dentinal microcracks between Wave One, Reciproc and One File groups(P>0.05). Conclusion: Root canal preparation can cause the dentinal microcracks,so it is important to choose the types of instruments.Root canals prepared with Reciproc,Wave One and One File produce less dentinal microcracks,which can decrease the risk of vertical root fracture.

Key words: mandibular specimen, dentinal microcrack, single files, Micro CT

中图分类号:

R781.05

孙颖, 王成坤, 周园园, 唐晓丽, 秦娇娇, 朱亚平, 焦珊. 3种往复旋转单支镍钛器械预备人下颌标本切牙根管后牙根微裂形成的比较[J]. 吉林大学学报(医学版), 2018, 44(01): 121-125.

SUN Ying, WANG Chengkun, ZHOU Yuanyuan, TANG Xiaoli, QIN Jiaojiao, ZHU Yaping, JIAO Shan. Comparison of dentinal microcrack development after canal preparation with three kinds of reciprocating nickel-titaninm instruments in a cadaver model[J]. Journal of Jilin University Medicine Edition, 2018, 44(01): 121-125.

参考文献

[1] Yoo YS,Cho YB.A comparison of the shaping ability of reciprocating NiTi instruments in simulated curved canals[J].Restor Dent Endod,2012,37(4):220-227.
[2] Kansal R,Rajput A,Talwar S,et al. Assessment of dentinal damage during canal preparation using reciprocating and rotary files[J]. J Endod,2014,40(9):1443-1446.
[3] Kazemipoor M,Azad S,Farahat F,et al.Concurrent effects of bleaching materials and the size of root canal preparation on cervical dentin microhardness[J].Iran Endod J, 2017, 12(3):298-302.
[4] Duque JA,Vivan RR,Cavenago BC,et al.Influence of NiTi alloy on the root canal shaping capabilities of the ProTaper Universal and ProTaper Gold rotary instrument systems[J].J Appl Oral Sci,2017, 25(1):27-33.
[5] 王静,王成坤,唐晓丽,等.3种往复旋转单支镍钛器械预备模拟弯曲根管的效果比较[J].吉林大学学报:医学版,2017,43(1):62-65.
[6] Hu L,Jiang S,Zhou T,et al.Multiscale modeling of polycrystalline NiTi shape memory alloy under various plastic deformation conditions by coupling microstructure evolution and macroscopic mechanical response[J]. Materials (Basel),2017, 10(10):1172.
[7] Singbal K,Jain D,Raja K,et al.Comparative evaluation of apically extruded debris during root canal instrumentation using two Ni-Ti single file rotary systems:An in vitro study[J].J Conserv Dent, 2017,20(2):64-67.
[8] Ashwinkumar V, Krithikadatta J, Surendran S, et al. Effect of reciprocating file motion on microcrack formation in root canals:an SEM study[J]. Int Endod J,2014,47(7):622-627.
[9] Ramos TI, Câmara AC,Aguiar CM,et al.Evaluation of capacity of essential oils in dissolving ProTaper Universal Gutta-Percha points[J].Acta Stomatol Croat, 2016, 50(2):128-133.
[10] Nayak G,Singh I,Shetty S,et al.Evaluation of apical extrusion of debris and irrigant using two new reciprocating and one continuous rotation single file systems[J].J Dent (Tehran),2014,11(3):302-309.
[11] Berutti E,Paolino DS,Chiandussi G.Root canal anatomy preservation of WaveOne reciprocating files with or without glide path[J]. J Endod, 2012,38(1):101-104.
[12] Lim H, Li FC, Friedman S, et al. Residual microstrain in root dentin after canal instrumentation measured with digital moire interferometry[J]. J Endod, 2016,42(9):1397-1402.
[13] Adorno CG, Yoshioka T, Jindan P, et al. The effect of endodontic procedures on apical crack initiation and propagation ex vivo[J]. Int Endod J,2013,46(8):763-768.
[14] Liu R, Hou BX, Wesselink PR, et al. The incidence of root microcracks caused by 3 different single-file systems versus the ProTaper system[J]. J Endod, 2013, 39(8):1054-1056.
[15] De Bruyne MA, De Moor RJ. SEM analysis of the integrity of resected root apices of cadaver and extracted teeth after ultrasonic root-end preparation at different intensities[J]. Int Endod J, 2005,38(5):310-319.
[16] Le Blanc AR, Reisz RR.Periodontal ligament, cementum, and alveolar bone in the oldest herbivorous tetrapods, and their evolutionary significance[J].PLoS One, 2013, 8(9):e74697.
[17] Nagaraja S, Murthy BVS. CT evaluation of canal preparation using rotary and hand Ni-Ti instruments:An in vitro study[J]. J Conserv Dent,2010, 13(1):16-22.
[18] Naseri M,Paymanpour P,Kangarloo A,et al.Influence of motion pattern on apical transportation and centering ability of WaveOne single-file technique in curved root canals[J].Dent Res J(lsfahan),2016,13(1):13-17.

3种往复旋转单支镍钛器械预备人下颌标本切牙根管后牙根微裂形成的比较

Comparison of dentinal microcrack development after canal preparation with three kinds of reciprocating nickel-titaninm instruments in a cadaver model

RichHTML

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

Metrics

本文评价

推荐阅读 10