The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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DEVELOPMENT OF PREDICTABLE STABILITY TEST FOR ASSESSMENT OF OPTIMUM LOADING TIME IN DENTAL IMPLANT

  • Kim, Seong-Kyun (Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Heo, Seong-Joo (Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Koak, Jai-Young (Department of Prosthodontics and Dental Research Institute, School of Dentistry, Seoul National University) ;
  • Lee, Joo-Hee (Department of Prosthodontics, Asan Medical Center, College of Medicine, University of Ulsan) ;
  • Kwon, Ji-Yong (School of Dentistry, Seoul National University)
  • Published : 2008.12.31
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Abstract

STATEMENT OF PROBLEM: The application of a simple, clinically applicable noninvasive test to assess implant stability are considered highly desirable. So far there is still a controversy about correlation of various tests and implant stability. PURPOSE: In order to assess implant stability, the development of a new method is critical. It's possible to assess implant stability by calculating energy and angular momentum during implant installation. The purpose of this study is to evaluate the correlation of energy and implant stability. MATERIAL AND METHODS: Twenty three implants were installed in two different types of pig bone. Type I bone was retrieved from the distal aspect of the rib, with more cortical bone. Type II bone came from a more proximal region with less cortical components and a higher content of bone marrow and spongeous trabeculae. Insertion torque, removal torque, ISQ values and angular momentum and energy were measured. Pearson Correlation test was done to analyze the relation between RFA, maximum insertion torque, mean insertion torque, bone type, energy and removal torque. RESULTS: Type I bone showed higher removal torque than type II bone. Energy value was significantly correlated with maximum insertion torque and mean insertion torque. RFA values were related with insertion torques but the significance was lower than Energy value. CONCLUSION: Within the limitation of this study energy values were considered clinically predictable method to measure the implant stability.

Keywords

References

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