Comparison of Apically Vertical Load Induced by Three NiTi Instruments during Curved Canal Shaping in Extracted Teeth.

doi:10.13701/j.cnki.kqyxyj.2019.10.016

Journal of Oral Science Research ›› 2019, Vol. 35 ›› Issue (10): 975-978.DOI: 10.13701/j.cnki.kqyxyj.2019.10.016

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Comparison of Apically Vertical Load Induced by Three NiTi Instruments during Curved Canal Shaping in Extracted Teeth.

XIA Zhimin¹, WU Changzhe¹, PENG Bin^2*

1. Department of Stomatology, Vocational School, Wuhan University, Wuhan 430060, China;
2. Department of Endodontics, School of Stomatology, Wuhan University, Wuhan 430079, China.

Received:2019-01-16 Online:2019-10-28 Published:2019-10-22

Abstract

Abstract: Objective: To compare the apically vertical load induced by three NiTi instruments during canal shaping of extracted teeth. Methods: Thirty extracted mandibular premolar teeth which had single canal with a curvature between 10-20 degree were shaped with ProTape Next (PTN; Dentsply Maillefer, Switzerland), ProTaper Universal (PTU,Dentsply Maillefer, Switzerland), and M3 (China) systems (n=10 for each system). During root canal shaping, time and apically vertical load were recorded. Results: PTN group had the lowest apically vertical load, while PTU group and M3 group had no significant difference. Conclusion: ProTaper next NiTi instrument system (PTN) had the lowest values of apically vertical load while shaping, which may attributed to its safety.

Key words: NiTi instruments, curved root canal, apically vertical load

XIA Zhimin, WU Changzhe, PENG Bin. Comparison of Apically Vertical Load Induced by Three NiTi Instruments during Curved Canal Shaping in Extracted Teeth.[J]. Journal of Oral Science Research, 2019, 35(10): 975-978.

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Comparison of Apically Vertical Load Induced by Three NiTi Instruments during Curved Canal Shaping in Extracted Teeth.

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