The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지

INFLUENCE OF IMPLANT FIXTURE DESIGN ON IMPLANT PRIMARY STABILITY

임플랜트 고정체의 형태가 임플랜트 초기안정성에 미치는 영향

  • Oh, Gap-Yong (Department of Prosthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea) ;
  • Park, Sung-Hwa (Department of Prosthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea) ;
  • Kim, Seok-Gyu (Department of Prosthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea)
  • 오갑용 (가톨릭대학교 임상치과학대학원 치과 보철학과) ;
  • 박성화 (가톨릭대학교 임상치과학대학원 치과 보철학과) ;
  • 김석규 (가톨릭대학교 임상치과학대학원 치과 보철학과)
  • Published : 2007.02.28
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Abstract

Statement of problem: Current tendencies of the implant macrodesign are tapered shapes for improved primary stability, but there are lack of studies regarding the relationship between the implant macrodesign and primary stability. Purpose: The purpose is to investigate the effect of implant macrodesign on the implant primary stability by way of resonance frequency analysis in the bovine rib bones with different kinds of quality. Material and method: Fifty implants of 6 different kinds from two Korean implant systems were used for the test. Bovine rib bones were cut into one hundred pieces with the length of 5 cm. Among them forty pieces of rib bones with similar qualities were again selected. For the experimental group 1, the thickness of cortical part was measured and 20 pieces of rib bones with the mean thickness of 1.0mm were selected for implant placement. For the experimental group 2, the cortical parts of the remaining 20 pieces of rib bones were totally removed and then implants were placed on the pure cancellous bone according to the surgical manual. After placement of all implants, the implant stability quotient(ISQ) was measured by three times, and its statistical analysis was done. Results: There are statistically significant differences in ISQ values among 4 different kinds of Avana system implants in the experimental group 2. For the experimental group 1, Avana system implants showed significantly different ISQ values, but when differences in the thickness of cortical parts were statistically considered, did not show any significant differences in ISQ values. Among Oneplant system implants, there are no significant differences in ISQ values for the experimental group 2 as well as for the experimental group 1. Conclusion: Within the limits of this study, bone quality and implant design have some influences on the primary stability of implants. Especially in the bone of poor quality, tapered shape of implants are more favorable for the primary stability of implants.

Keywords

References

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