The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지

A COMPARATIVE ANALYSIS WITH RESONANCE FREQUENCY ACCORDING TO VARIOUS SIMULATED BONE DEFECTS

다양한 가상 골 결함에 따른 공진 주파수의 비교 분석

  • Kim Sang-Mi (Department of Prosthodontics, Research Institute of Oral Science, College of Dentistry, Kangnung National University) ;
  • Park Chan-Jin (Department of Prosthodontics, Research Institute of Oral Science, College of Dentistry, Kangnung National University) ;
  • Yi Yang-Jin (Department of Prosthodontics, Research Institute of Oral Science, College of Dentistry, Kangnung National University) ;
  • Chang Beom-Seok (Department of Periodontology, Research Institute of Oral Science, College of Dentistry, Kangnung National University) ;
  • Cho Lee-Ra (Department of Prosthodontics, Research Institute of Oral Science, College of Dentistry, Kangnung National University)
  • 김상미 (강릉대학교 치과대학 치과보철학교실 및 구강과학연구소) ;
  • 박찬진 (강릉대학교 치과대학 치과보철학교실 및 구강과학연구소) ;
  • 이양진 (강릉대학교 치과대학 치과보철학교실 및 구강과학연구소) ;
  • 장범석 (강릉대학교 치과대학 치주과학교실 및 구강과학연구소) ;
  • 조리라 (강릉대학교 치과대학 치과보철학교실 및 구강과학연구소)
  • Published : 2005.08.01
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Abstract

Purpose: Resonance frequency analysis (RFA) , a non-invasive technique for the clinical measurement of implant stability, was investigated. Peri-implant bony defect may contribute to implant failure. This in vitro study evaluated the resonance frequencies according to various bony defects and determined whether the directional bone defect can affect the value of frequency analysis. Material and Method: Fifteen 3.75 mm in diameter and 10 mm in length, machined self-tapping implant future were used. Twelve types of bone defects that have different horizontal and vertical dimensions were simulated. Embedded implants were attached to the dental surveyor. Then, the transducer was connected with the implant fixture and the ISQ value was measured at four different directions. Two-way analysis of variance and post hoc $Sch\`{e}ffe'$ test were performed at the 95% significance level. Results: The control group showed the highest ISQ value and 5 thread-$360^{\circ}$ group had the lowest one. As the vertical exposure of implants in each angle was increased, the ISQ value was decreased. Although the horizontal exposure in each thread was increased, the ISQ value was not significantly decreased. Conclusion : Although the simulated defect type was different from each other, the ISQ value was similar among groups.

Keywords

References

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