골유착성 임플랜트를 중간지대치로 사용한 고정성 보철물의 응력분석 = A TWO DIMENSIONAL STRESS ANALYSIS OF FIXED PROSTHESIS WITH OSSEOINTEGRATED IMPLANT AS AN INTERMEDIATE ABUTMENT

다국어 초록 (Multilingual Abstract)

The purpose of this study was to analyze the stress distribution of the natural teeth, the implant, the prosthesis and the supporting tissue according to the types of implant and connection modality in the five-unit fixed partial denture with a implant pier abutment.
A Two dimensional stress analysis model was constructed to represent a mandible missing the first and second premolars and first molar. The model contained a canine and second molar as abutment teeth and implant pier abutments with and without stress-absorbing element. Finite element models were created and analyzed using software ANSYS 4.4A for IBM 32bit personal computer.
The results obtained were as follows;
1. Implant group, compared to the natural teeth group, showed a maximum principal stress at the superior portion of implants and a stress concentration at the neck and end portion.
2. Maximum principal stress and maximum Von Mises stress were always lower in the case of rigid connection than nonrigid connection.
3. A cylinder type implant with stress absorbing element and screw type implant were generally similar in the stress distribution pattern.
4. A screw type implant, compared to the cylinder type implant, showed a relatively higher stress concentration at both neck and end portion of it.
5. Load B cases showed higher stress concentration on the posterior abutments in the case of nonrigid connector than rigid connector.
6. A maximum displacement was always lower in the case of rigid connection than nonrigid connection.
These results suggest that osseointegrated implant can be used as an intermediate abutment.

목차 (Table of Contents)

• Ⅰ. 서 론
• Ⅱ. 연구방법
• Ⅲ. 연구결과
• Ⅳ. 총괄 및 고안
• Ⅴ. 결 론
• 참고문헌
• 영문초록
• 사진부도 설명
• 사진부도