镍钛器械在3种不同运动模式下预备根管后根尖孔表面形态变化

doi:10.13701/j.cnki.kqyxyj.2017.02.016

口腔医学研究 ›› 2017, Vol. 33 ›› Issue (2): 183-186.DOI: 10.13701/j.cnki.kqyxyj.2017.02.016

镍钛器械在3种不同运动模式下预备根管后根尖孔表面形态变化

熊梦琳, 徐江, 马琰, 马俊玥, 高文辉, 吴佩玲^*

新疆医科大学第二附属医院口腔科新疆乌鲁木齐 830028

出版日期:2017-02-20 发布日期:2017-02-22
通讯作者: 吴佩玲,E-mail: wplkq@sina.com
作者简介:熊梦琳(1989~ ),女,四川人,硕士在读,住院医师,主要从事牙体牙髓病的临床研究工作。
基金资助:
自治区自然科学基金资助项目(2016D01C212)

Morphology Changes of Apical Foramen after Root Canal Preparation with Three Different Types of Nickel Titanium Instruments.

XIONG Meng-lin, XU Jiang, MA Yan, MA Jun-yue, GAO Wen-hui, WU Pei-lin²*.

Department of Stomatology, The Second Affiliated Hospital, Xinjiang Medical University, Urumqi 830028, China.

Online:2017-02-20 Published:2017-02-22

摘要/Abstract

摘要： 目的:研究3种不同运动模式下镍钛器械在平解剖性根尖孔长度时预备根管后根尖孔表面形态变化。方法:收集新鲜拔除的离体牙60颗,随机分为3组,用扫描电子显微镜拍摄术前片,记录根尖孔表面形态,然后分别采用Twist File Adaptive(TFA)、WaveOne、ProTaper(机用)3种镍钛锉在平解剖性根尖孔的工作长度下进行根管预备,然后在扫描电子显微镜下拍摄术后片,记录根尖孔周围牙骨质的缺损、根尖孔偏移、根尖孔周围表面的裂纹。结果:实验组均出现根尖孔周围牙骨质的缺损、根尖孔偏移、根尖孔周围表面的裂纹。3种镍钛器械根管预备后发生根尖孔偏移、根尖孔周围表面裂纹概率的差异有统计学意义(P＜0.05),3种镍钛器械根管预备后发生根尖孔周围牙骨质缺损概率的差异无统计学意义。结论:TFA和WaveOne在进行预备根管后相比ProTaper可降低根尖孔偏移的发生率,TFA比ProTaper和WaveOne在进行预备根管后产生根尖孔周围表面的裂纹少,降低了根折的风险。

关键词: 镍钛系统, 根管预备, 根尖孔表面形态

Abstract: Objective: To study the morphology changes of apical foramen after root canal preparation with three different types of nickel titanium instruments. Methods: Sixty freshly extracted teeth due to periodontal disease were randomized divided into 3 groups according to the surface morphology of apical foramen observed by SEM. The samples were prepared by TFA, WaveOne, and ProTaper respectively within the work length (parallel to the anatomic apical foramen). After root canal preparation, the surface morphology of apical foramen of each tooth was observed by SEM. Results: The apical foramen shift, the dentin defects, and the crackles around the apical foramen were recorded. The differences of the dentin defects in the three groups were not statistically significant, but the number of apical foramen shift and the crackles were statistically different (P＜0.05). Conclusion: TFA and WaveOne could reduce the apical foramen shift in contrast to ProTaper after root canal preparation. Prepared by TFA could reduce the crackles of the root canal and reduce the risk of root fracture.

Key words: Nickel-titanium instruments , Root canal preparation, Apical surface morphology

中图分类号:

R781.05

熊梦琳, 徐江, 马琰, 马俊玥, 高文辉, 吴佩玲. 镍钛器械在3种不同运动模式下预备根管后根尖孔表面形态变化[J]. 口腔医学研究, 2017, 33(2): 183-186.

XIONG Meng-lin, XU Jiang, MA Yan, MA Jun-yue, GAO Wen-hui, WU Pei-lin*.. Morphology Changes of Apical Foramen after Root Canal Preparation with Three Different Types of Nickel Titanium Instruments.[J]. Journal of Oral Science Research, 2017, 33(2): 183-186.

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镍钛器械在3种不同运动模式下预备根管后根尖孔表面形态变化

Morphology Changes of Apical Foramen after Root Canal Preparation with Three Different Types of Nickel Titanium Instruments.

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