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KMID : 1004520110270040371
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Journal of Dental Rehabilitation and Applied Science
2011 Volume.27 No. 4 p.371 ~ p.392
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Three Dimensional Finite Element Analysis on Stress Distribution According to the Bucco-lingual Inclination of the Implant Fixture and Abutment in the Mandibular Posterior Region
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Lee Hyun-Sook
Kim Ji-Youn
Kim Ye-Mi
Kim Myung-Rae
Kim Sun-Jong
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Abstract
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The purpose of this study was to comparatively analyze the stress distribution according to the inclinations of abutments and angulations of the implant fixtures under occlusal loading force. Three study models with straight and and -angled abutments were prepared following the insertion of Implants parallel to the long axis of the tooth. Additional two experimental models were fabricated with and fixture inclinations. Using ANSYS 11, a finite element analysis program, the magnitudes of stress distribution were analyzed. The magnitude of stress under loading was lowest when the load was applied vertically onto the axis of implant. And the magnitude of stress under compound(vertical+oblique) loading was increased as the inclination of implant abutment and fixture was increase. But, the distribution of stress was different as the loading conditions, because of the horizontal offset. As the offset between the axis of loading and the central axis of the implant increased, the stress was increased.
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KEYWORD
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Dental Implants, Finite Element Analysis, Occlusal Force, Stress Distribution
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