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《West China Journal of Stomatology》 2010-05
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Torque resistance of three different types of nickel-titanium rotary instruments

SUN Wei1,HOU Ben-xiang2.(1.Dept.of Prosthodontics,Changsha Stomatological Hospital,Changsha 410005,China;2.Dept.of Endodontics,Beijing Stomatology Hospital,Capital Medical University,Beijing 100050,China)  
Objective To compare torsional fracture of three different types of nickel-titanium rotary instruments ProTaper,Hero642 and Mtwo by making a stimulate models in vitro.Methods Through the establishment of model in vitro,compared the different time with 3 kinds of nickel titanium file in cutting-edge bound occurs,and to observe the section of fractured instruments by scanning electron microscope.Results The resistence to torque was different from three types of nickel titanium instruments.The time to fracture of Mtwo was significantly longer than ProTaper’s and Hero642’s,but ProTaper’s and Hero642’s had no significant difference.Three kinds cross-sectional design were different,a lot of toughness nests were seen in broken surface.Most of them were ductile fracture.Time to fracture was influenced by the quality disfigurement.Conclusion The resistance to torque of Mtwo was better than ProTaper and Hero642.The lifespan was influenced by the design of cross-section.The quality disfigurement of the files reduced the resistance to flexual fatigue.
【Fund】: 首都医学发展科研基金资助项目(2005-3046)
【CateGory Index】: R781.05
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【References】
Chinese Journal Full-text Database 1 Hits
1 ZHI Jie-yun(Department of Stomatology of the Third Affiliated Hospital,Baotou Medical College,Inner Mongolia 014030,China);Observation of the clinical effect between two kinds of NiTi rotary file in preparation molar curved root canals for the aged[J];Chinese Journal of Geriatric Dentistry;2010-06
【Citations】
Chinese Journal Full-text Database 3 Hits
1 HOU Ben-xiang, XU Ai-feng, ZHANG Chen, LING Jian-jun. Faculty of Stomatology, Capital University of Medical Sciences, Beijing 100050, China;Effect of removing separated instrument from root canal with ultrasonic tips of ET20 and ET40[J];Beijing Journal of Stomatology;2006-02
2 Yuan Li,Yue Lin, Wang Jiade.Department of Cariology, Operative Dentistry and Endodontics, School of Stomatology, Peking University, Beijing 100081, China;Morphological characteristics of damaged Hero642 Ni-Ti dental files[J];Journal of Practical Stomatology;2006-05
3 SHEN Ya, PENG Bin,FAN Bing, BIAN Zhuan, FAN Ming wen . Department of Operative Dentistry and Endodontics, School of Stomatology, Wuhan University, Wuhan 430079, China;Clinical analysis of the fracture of nickel-titanium instruments during root canal therapy[J];Chinese Journal of Stomatology;2004-01
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 HOU Ben-xiang, XU Ai-feng, ZHANG Chen, LING Jian-jun. Faculty of Stomatology, Capital University of Medical Sciences, Beijing 100050, China;Effect of removing separated instrument from root canal with ultrasonic tips of ET20 and ET40[J];Beijing Journal of Stomatology;2006-02
2 DU Qi-tao. Department of Endodontics, Dalian Stomatological Hospital, Dalian 116021,China;Clinical evaluation of Protaper file in root canal preparation[J];Beijing Journal of Stomatology;2006-02
3 FU Mei,HOU Ben-xiang,ZHANG Zhi-ling.Department of Endodontics,Capital Medical University School of Stomatology,Beijng 100050,China;Comparison of removing nickel-titanium and stainless-steel broken files from root canal by ultrasonic technique in vitro[J];Beijing Journal of Stomatology;2009-04
4 ZHANG Zhi-ling,FU Mei,HOU Ben-xiang.Department of Stomatology,Beijing Children's Hospital,Capital Medical University,Beijing 100045,China;Evaluation of injury on root canal during removing broken instruments by ultrasonic technique[J];Beijing Journal of Stomatology;2010-01
5 ZHAO Ying-zi. Department of Endodontology, Shenyang Stomatological Hospital, Shenyang 110002, China;Clinical Effect of Mtwo Rotary Nickel-titanium Instruments in Root Canals Preparation[J];Journal of Dental Prevention and Treatment;2010-04
6 SUN Wei,HOU Ben-xiang. (Dept. of Conservative Dentistry and Endodontics,School of Stomatology,Capital Medical University,Bei-jing 100050,China);Analysis of the factors influence the fracture about nickel-titanium rotary instruments[J];International Journal of Stomatology;2010-06
7 Huang Li, Peng Bin Dept. of Endodontics, Hospital of Stomatology, Wuhan University, Wuhan 430079, China;Effect of 5.25%NaOCl Irrigation on the Microhardness of Root Dentin with Two Different Types of Instrumentation[J];Journal of Hubei Medical University;2005-04
8 LIU Yong1, HOU Ben-xiang2, ZHANG Wen-kui1, ZHANG Ai-feng1.(1. Dept. of Stomatology, Bei-jing Friendship Hospital, Capital Medical University, Beijing 100050, China; 2. Dept. of Conservative Dentistry and Endodontics, Faculty of Stomatology, Capital Medical University, Beijing 100050, China);Clinical effect of the use of dental operating microscope and ultrasonic instruments in the management of blocked canals[J];West China Journal of Stomatology;2009-01
9 FU Mei1,HOU Ben-xiang1,ZHANG Zhi-ling2.(1.Dept.of Endodontics,Beijing Stomatological Hospital,Capital Medical University,Beijing 100050,China;2.Dept.of Stomatology,Beijing Children's Hospital,Capital Medical University,Beijing 100045,China);The effect of curvature of simulated root canal and location of fragment on removal of broken file from simulated root canal[J];West China Journal of Stomatology;2010-06
10 DONG Liwu,FANG Ling,WANG Lijie,et al Department of Stomatology,General Hospital of Daqing Oil Field,Daqing 163001,China;Effect Analysis of Treatment for Difficult Root Canals with Dental Operating Microscope and Ultrasonic Instruments[J];Journal of Medical Forum;2010-01
【Co-references】
Chinese Journal Full-text Database 6 Hits
1 Yuan Li,Yue Lin, Wang Jiade.Department of Cariology, Operative Dentistry and Endodontics, School of Stomatology, Peking University, Beijing 100081, China;Morphological characteristics of damaged Hero642 Ni-Ti dental files[J];Journal of Practical Stomatology;2006-05
2 XIA Lingyun1,CHEN Xinmei2,LUO Zhixiao1,LENG Weidong1,YANG Guobiao3.1.Department of Stomatology,Taihe Affiliated Hospital,Yunyang Medical College,Hubei Shiyan 442000,China;2.Department of Endodontics,West China College of Stomatology,Sichuan University,Chengdu 610041,China;3.The Second People Hospital,Zhuhai 519020,China;Shaping effects of hand-used ProTaper files in S-shaped simulated root canals[J];Journal of Practical Stomatology;2009-05
3 GUO Huijie,LIANG Yuhong,WANG Jiade. Department of Stomatolog,People's Hospital,Peking University,Beijing 100044;Comparison between two types of rotary NiTi instruments in root canal preparation:a clinical study[J];Journal of Modern Stomatology;2009-03
4 HE Man,YUAN Li,LI Sa,et al.Stomatology Department of Shenzhen People's Hospital,Shenzhen 518020;Clinically dynamic observation on the deformation process of Protaper rotary files[J];Journal of Modern Stomatology;2010-01
5 GU Yong-chun,ZHOU Pei-gang,DING Yue-feng,ZHONG Yan(First People′s Hospital of Wujiang,Wujiang 215200,China);Experimental study of root canal deviation during instrumentation of the curved root canals[J];Chinese Journal of Conservative Dentistry;2007-02
6 LU Zhi-shan, LIU Zhong-hao, JIANG Guang-shui, LI Zhi-qiang, REN Guang-hui, WANG Tie-jun. (Yantai Stomatological Hospital, Shandong, 264000, China);Effect of molar root canal preparation with Hero642 Nickel-Titanium instrument on the occurrence of endodontic interappointment emergencies in old patients[J];Chinese Journal of Geriatric Dentistry;2006-04
【Secondary Citations】
Chinese Journal Full-text Database 6 Hits
1 WANG Ping, GU Wu-wei, WANG Yu, LIU Zhao-juan, QU Rui-ling. School of Stomatology, The Fourth Military Medical University. Xian 710032;Root canal curvature of human maxillary first premolars in buccolingual directions[J];Beijing Journal of Stomatology;2005-01
2 PENG Bin, LEI Fang, CHENG Yong, et al. College of stomotology, Hubei Medical University, Wuhan 430079 [;The influence of the trial point on the quality of root canal obturation.[J];JOURNAL OF COMPREHENSIVE STOMATOLOGY;2000-01
3 Zheng Yufeng,Li Chao,Huang Chen,et al.Department of Mechanics and Engineering Science, Peking University, Beijing 100871,China;Torsional property and rotary fatigue fracture of Smart~ nickel-titanium endodontic instruments[J];Journal of Practical Stomatology;2005-02
4 LING Jun-qi,WEI Xi, GAO Yan. Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China;Evaluation of the use of dental operating microscope and ultrasonic instruments in the management of blocked canals[J];Chinese Journal of Stomatology;2003-05
5 SHEN Ya, PENG Bin,FAN Bing, BIAN Zhuan, FAN Ming wen . Department of Operative Dentistry and Endodontics, School of Stomatology, Wuhan University, Wuhan 430079, China;Clinical analysis of the fracture of nickel-titanium instruments during root canal therapy[J];Chinese Journal of Stomatology;2004-01
6 Wang Xiaoyi; et al.(School of Stomatology , Shanghai Second MedicalUniversity , Shanghai (200011);Removal of intracanal obstructions with ultrasound(an analysis of 206 cases)[J];CHINESE JOURNAL OF STOMATOLOGY;1994-03
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