The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)
- Volume 34 Issue 1
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- Pages.31-69
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- 1996
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
A THREE DIMEMSIONAL PHOTOELASTIC STRESS ANALYSIS OF IMPLANT SUPPORTING BONE TISSUE ACCORDING TO DESIGN OF ATTACHMENTS USED FOR MANDIBULAR OVERDENTURE USING TWO OSSEOINTEGRATED IMPLANSTS
두개의 골유착성 임프란트를 이용한 하악 OVERDENTURE에서 ATTACHMENT 설계에 따른 임프란트 지지조직의 삼차원적 광탄성 응력분석
- Shin, Kyoo-Hag (Department of Prosthodontics, College of Dentistry, Pusan National University) ;
- Jeong, Chang-Mo (Department of Prosthodontics, College of Dentistry, Pusan National University) ;
- Jeon, Young-Chan (Department of Prosthodontics, College of Dentistry, Pusan National University) ;
- Hwang, Hie-Seong (Department of Dentistry, College of medicine, Donga University)
- Published : 1996.04.01
Abstract
The purpose of this investigation was to analyze stress distribution in implant supporting tissue according to different types of attachments such as combination bar attachment, Hader bar attachment, O-Ring attachment and Dal-Ro attachment that are used in mandibular overdenture by using two osseointegrated implants, to study the influence that POM IMC used in bar type attachment has in implant supporting tissue and compare the preceding analyses to find out an effective stress distribution method. Three dimensional photoelastic method was used to obtain the following results. (A) Analysis of stress distribution according to attachment type 1. Under vertical load condition, compressive stress was seen at implant supporting area of working side on all the photoelastic models but in Hader bar attachment tensional stress was seen at distal upper area of implant supporting area. Relatively Hader bar and O-Ring attachment showed even stress distribution pattern. 2. Under vertical load condition, compressive stress at implant apex area and tensional stress at implant lateral supporting area were seen at nonworking side of all models. 3. Under
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