The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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THE EFFECT OF AUTOCLAVE STERILIZATION AND REUSE OF $SMARTPEG^{TM}$ ON THE IMPLANT STABILITY QUOTIENT (ISQ) MEASUREMENT

$Smartpeg^{TM}$의 고압멸균소독 및 재사용이 임플랜트 안정성 지수(ISQ) 측정에 미치는 영향

  • Kang, In-Ho (Department of Prosthodontics, Graduate School, Seoul National University) ;
  • Kim, Myung-Joo (Department of Prosthodontics, Graduate School, Seoul National University) ;
  • Lim, Young-Jun (Department of Prosthodontics, Graduate School, Seoul National University) ;
  • Kim, Chang-Whe (Department of Prosthodontics, Graduate School, Seoul National University)
  • 강인호 (서울대학교 치과대학 치과보철학교실) ;
  • 김명주 (서울대학교 치과대학 치과보철학교실) ;
  • 임영준 (서울대학교 치과대학 치과보철학교실) ;
  • 김창회 (서울대학교 치과대학 치과보철학교실)
  • Published : 2007.10.31
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Abstract

Statement of problem: Resonance frequency analysis is evaluated as the non-invasive and objective method for the evaluation of implant stability and has been increasingly used. It is necessary to evaluate the factors affect the ISQ measurement stability. Purpose: This study was performed to evaluate the effect of the autoclave sterilization and reuse of $Smartpeg^{TM}$ on ISQ measurement. Material and methods: $SmartPeg^{TM}$ (Integration Diagnostics Ltd., $G\ddot{o}teborg$, Sweden) of autoclave group (A) was autoclave sterilized 9 times and $Smartpeg^{TM}$ of reuse group (R) was reused 9 times. Ten $SmartPeg^{TM}s$ were allocated to each group and after each autoclave sterilization and reuse, implant stability quotient (ISQ) values were measured 3 times from the two directions a and b at a right angle. $Osstell^{TM}$ mentor (Integration Diagnostics Ltd. $G\ddot{o}teborg$, Sweden) was used and type 1 (article no. 100353) $Smartpeg^{TM}$ was selected according to $Smartpeg^{TM}$ reference list. Osstem Implant US II future (Osstem Co., Seoul, Korea) in $4.0mm{\times}11.5mm$ was embedded in the self-curing acrylic resin ($Orthojet^{(R)}$, Lang Dental, U.S.A.). Data was statistically analyzed by one-way ANOVA $({\alpha}=.05)$ and scheffe test was done where a significant difference exist. Correlation test was also done between ISQ value and the number of autoclave sterilization or reuse. Results: 1. In autoclave group, the means and sd. of ISQ value before autoclave sterilization were $84.97{\pm}0.41,\;84.93{\pm}0.74$ at direction a and b. There was significant differences between autoclave groups at direction a and b (P=.000). 2. In reuse group, the means and sd. of ISQ value before reuse were $85.40{\pm}0.62,\;85.50{\pm}0.57$ at direction a and b. There was no significant difference between reuse groups at direction a and b (P>.05). 3. There was a weak positive correlation between the number of reuse and ISQ value at direction a and b (${\gamma}=.207$ and .246, P<.01). Conclusion: Within the limitations of this study, the following conclusions were drawn. Till ninth reuse of $Smartpeg^{TM}$, the ISQ measurement stability did not be affected. After twice autoclave sterilization of $Smartpeg^{TM}$ the ISQ measurement stability was affected.

Keywords

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