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KMID : 0988720060220010037
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Journal of the Korean Academy of Stomatognathic Function and occlusion
2006 Volume.22 No. 1 p.37 ~ p.53
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Finite Element Approach to Investigate the Influence of the Jaw Bone Dimension on the Stress Around the Root Analogue Dental Implant
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Lee Kyu-Bok
Lee Cheong-Hee
Jo Kwang-Hun
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Abstract
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Finite Element Approach to Investigate the Influence of the Jaw Bone Dimension on the Stress Around the Root Analogue Dental Implant Ji-Man Jang, D.D.S., M.S.D., Kyu-bok Lee, D.D.S., M.S.D., Cheong-Hee Lee, D.D.S., M.S.D., Ph.D., Kwang-Hun Jo, D.D.S., M.S.D., Ph.D. Department of Prosthodontics, Graduate School, Kyungpook University Purpose: The purpose of this study was to investigate the influences of the jaw dimension on the bone stress. Materials and Methods: Root analogue implant of Frialit-2 Synchro model in the jaw bone of various thickness from 8mm to 13mm were modelled axisymmetrically for a series of finite element analyses. As load conditions, non-axisymmetric lateral load of 20N and an oblique load of 50N, as well as an axisymmetric vertical load of 50N were taken into consideration. Results: The cervical area of implant under the axisymmetric load and the base cortical bone under the non axisymmetric load condition were the areas of main concern where the higher level of stress were likely to be obtained. Conclusion: The results indicated that at the two concerned areas drastically different stress distribution could take place as a function of the load conditions. Under the vertical load, the lower level of stress was observed for the narrow jaw bone at the cervical cortical bone whereas stress at the base cortical bone remained virtually unchanged. Under the non axisymmetric load condition, however, the stress at the base cortical bone increased very rapidly as the jaw bone width increased without inducing any significant change in the stress level at the cervical area.
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KEYWORD
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axisymmetric, finite element analysis, Frialit-2 Synchro model, jaw bone dimension
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