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

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Authors

이우철; 송민주; 김의성; 이효진; 김현철

Issue Date
2012-11
Publisher
대한치과보존학회
Citation
Restorative Dentistry and Endodontics, Vol.37 No.4, pp.201-206
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 operators experience or preferred technique and frequency of re-use or incidence of file fracture was assessed. Results: A total of 348dentists (51.7%) responded. The most frequently used NiTi instruments was ProFile (39.8%) followed by ProTaper. The most preferred preparation technique was crowndown (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.
ISSN
2234-7658
URI
https://hdl.handle.net/10371/203909
DOI
https://doi.org/10.5395/rde.2012.37.4.201
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