대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제39권6호
- /
- Pages.611-624
- /
- 2001
- /
- 0301-2875(pISSN)
- /
- 2005-3789(eISSN)
ANALYSIS OF THE FIT IN THE IMPLANT PROSTHESIS USING A LASER DISPLACEMENT METER AND THREE-DIMENSIONAL FINITE ELEMENT METHOD
- Kwon Ho-Beom (Department of prosthodontics, Graduate school, Seoul National University) ;
- Kim Yung-Soo (Department of prosthodontics, Graduate school, Seoul National University) ;
- Kim Chang-Whe (Department of prosthodontics, Graduate school, Seoul National University)
- 발행 : 2001.12.01
초록
A precise fit of the implant prosthesis is one of the most important factors in preventing mechanical complications. To analyze the degree of the misfit of implant prosthesis, a modal testing experiment was accomplished. And. to interpret the modal testing analysis mathematically, three-dimensional finite element models were established. In the experimental modal testing analysis, with a laser displacement meter, FFT analyzer, impact hammer, etc., natural frequencies of the models with various degree of prosthesis fit were determined after the frequency response function were calculated. In the finite element analysis, the natural frequencies and mode shapes of the models which simulated those of experimental modal testing were computed. The results were as follows: 1. Natural frequencies of the prosthesis-abutment were related to the contact state between components. 2. In the modal testing experiment, the natural frequencies increased from