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A survey of experience-based preference of Nickel-Titanium rotary files and incidence of fracture among general dentists

Authors
 WooCheol Lee  ;  Minju Song  ;  Euiseong Kim  ;  Hyojin Lee  ;  Hyeon-Cheol Kim 
Citation
 Restorative Dentistry & Endodontics, Vol.37(4) : 201-206, 2012 
Journal Title
 Restorative Dentistry & Endodontics 
ISSN
 2234-7658 
Issue Date
2012
Abstract
OBJECTIVES: The purpose was to investigate the preference and usage technique of NiTi rotary instruments and to retrieve data on the frequency of re-use and the estimated incidence of file separation in the clinical practice among general dentists. MATERIALS AND METHODS: A survey was disseminated via e-mail and on-site to 673 general dentists. The correlation between the operator's experience or preferred technique and frequency of re-use or incidence of file fracture was assessed. RESULTS: A total of 348 dentists (51.7%) responded. The most frequently used NiTi instruments was ProFile (39.8%) followed by ProTaper. The most preferred preparation technique was crown-down (44.6%). 54.3% of the respondents re-used NiTi files more than 10 times. There was a significant correlation between experience with NiTi files and the number of reuses (p = 0.0025). 54.6% of the respondents estimated experiencing file separation less than 5 times per year. The frequency of separation was significantly correlated with the instrumentation technique (p = 0.0003). CONCLUSIONS: A large number of general dentists in Korea prefer to re-use NiTi rotary files. As their experience with NiTi files increased, the number of re-uses increased, while the frequency of breakage decreased. Operators who adopt the hybrid technique showed less tendency of separation even with the increased number of re-use.
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/91805
DOI
10.5395/rde.2012.37.4.201
Appears in Collections:
1. Journal Papers (연구논문) > 2. College of Dentistry (치과대학) > Dept. of Conservative Dentistry (보존과학교실)
Yonsei Authors
김의성(Kim, Eui Seong)
송민주(Song, Min Ju)
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