대한치과교정학회지 (The korean journal of orthodontics)

  • 제41권5호
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  • Pages.354-360
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  • 2011
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  • 2234-7518(pISSN)
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  • 2005-372X(eISSN)
대한치과교정학회 (The Korean Association Of Orthodontists)
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인조골에서 식립 방법이 교정용 미니 임플란트의 기계적 안정성에 미치는 영향에 대한 예비연구

The effects of different pilot-drilling methods on the mechanical stability of a mini-implant system at placement and removal: a preliminary study

  • Cho, Il-Sik (Department of Orthodontics, School of Dentistry, Seoul National University) ;
  • Choo, Hye-Ran (Department of Craniofacial Orthodontics, Childrens' Hospital of Phildelphia) ;
  • Kim, Seong-Kyun (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Shin, Yun-Seob (Department of Orthodontics, School of Dentistry, Kyung Hee University) ;
  • Kim, Duck-Su (Department of Restorative Dentistry, School of Dentistry, Kyung Hee University) ;
  • Kim, Seong-Hun (Department of Orthodontics, School of Dentistry, Kyung Hee University) ;
  • Chung, Kyu-Rhim (Department of Dentistry, School of Medicine, Ajou University) ;
  • Huang, John C. (Division of Orthodontics, Department of Orofacial Science, University of California SanFrancisco)
  • 투고 : 2011.05.30
  • 심사 : 2011.09.21
  • 발행 : 2011.10.30
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초록

Objective: To investigate the effects of different pilot-drilling methods on the biomechanical stability of self-tapping mini-implant systems at the time of placement in and removal from artificial bone blocks. Methods: Two types of artificial bone blocks (2-mm and 4-mm, 102-pounds per cubic foot [102-PCF] polyurethane foam layered over 100-mm, 40-PCF polyurethane foam) were custom-fabricated. Eight mini-implants were placed using the conventional motor-driven pilot-drilling method and another 8 mini-implants were placed using a novel manual pilot-drilling method (using a manual drill) within each of the 2-mm and 4-mm layered blocks. The maximum torque values at insertion and removal of the mini-implants were measured, and the total energy was calculated. The data were statistically analyzed using linear regression analysis. Results: The maximum insertion torque was similar regardless of block thickness or pilot-drilling method. Regardless of the pilot-drilling method, the maximum removal torque for the 4-mm block was statistically higher than that for the 2-mm block. For a given block, the total energy at both insertion and removal of the mini-implant for the manual pilot-drilling method were statistically higher than those for the motor-driven pilot-drilling method. Further, the total energies at removal for the 2-mm block was higher than that for the 4-mm block, but the energies at insertion were not influenced by the type of bone blocks. Conclusions: During the insertion and removal of mini-implants in artificial bone blocks, the effect of the manual pilot-drilling method on energy usage was similar to that of the conventional, motor-driven pilot-drilling method.

키워드

참고문헌

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피인용 문헌

  1. Effects of predrilling on the osseointegration potential of mini-implants. vol.82, pp.6, 2012, https://doi.org/10.2319/020712-114.1
  2. Insertion torque and orthodontic mini-implants: A systematic review of the artificial bone literature vol.227, pp.11, 2011, https://doi.org/10.1177/0954411913495986
  3. Orthodontic skeletal anchorage: Up-to-date review vol.76, pp.3, 2011, https://doi.org/10.1016/j.odw.2017.06.002