대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제29권1호
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- Pages.1-11
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- 1991
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
A TWO DIMENSIONAL STRESS ANALYSIS COMPARING FIXED PROSTHETIC APPROACHIES TO THE TILTED MOLAR ABUTMENT
- YANG, H.S. (College of Dentistry, Chonnam National University) ;
- Thompson, V.P. (Dental School University of Maryland, Baltimore)
- 발행 : 1991.01.01
초록
A two dimensional finite element method was used to analyze the changes in mechanical behavior of the supporting structures when a fixed prosthesis replaced a mandibular 1st molar. In the unrestored situation as the degree of bone resorption increased, there was a corresponding increase in stress in the periodontium. Tilting of the molar abutment induced the additional stress on the mesial side of the root. The presence of a fixed prosthesis markedly reduced the magnitude and distribution of stress in the periodontium. The mechanical advantage obtained by a fixed prosthesis was greater in the situation of a tilted 2nd molar with reduced bone support than with the higher bone levels.
키워드