Restorative Dentistry and Endodontics

  • 제37권4호
  • /
  • Pages.201-206
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  • 2012
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  • 2234-7658(pISSN)
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  • 2234-7666(eISSN)
대한치과보존학회 (The Korean Academy of Conservative Dentistry)
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A survey of experience-based preference of Nickel-Titanium rotary files and incidence of fracture among general dentists

  • Lee, WooCheol (Department of Conservative Dentistry, Seoul National University School of Dentistry and Dental Research Institute) ;
  • Song, Minju (Department of Conservative Dentistry, Yonsei University College of Dentistry) ;
  • Kim, Euiseong (Department of Conservative Dentistry, Yonsei University College of Dentistry) ;
  • Lee, Hyojin (Department of Statistics, Pusan National University) ;
  • Kim, Hyeon-Cheol (Department of Conservative Dentistry, Pusan National University School of Dentistry)
  • 투고 : 2012.06.01
  • 심사 : 2012.07.15
  • 발행 : 2012.12.01
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초록

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 re-uses (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.

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참고문헌

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피인용 문헌

  1. Prevention and management of fractured instruments in endodontic treatment vol.5, pp.1, 2015, https://doi.org/10.5412/wjsp.v5.i1.82
  2. Influence of operator's experience level on lifespan of the WaveOne Primary file in extracted teeth vol.38, pp.4, 2013, https://doi.org/10.5395/rde.2013.38.4.222