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KMID : 0988720050210020113
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Journal of the Korean Academy of Stomatognathic Function and occlusion
2005 Volume.21 No. 2 p.113 ~ p.132
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Finite Element Stress Analysis of Implant Prosthesis According to Friction Fit or Slip Fit of Internal Connection System between Implant and Abutment
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Chang Doo-Ik
Jeong Seung-Mi
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Abstract
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The purpose of this study was to assess the stress-induced pattern at the supporting bone, the implant fixture, the abutment and the abutment screw according to a friction-fit joint (Astra; Model 1) or slip- fit joint (Frialit-2; Model 2) in the internal connection system under vertical and inclined loading using finite element analysis. In conclusion, in the internal connection system of the implant and the abutment connection methods, the stress-induced pattern at the supporting bone, the implant fixture, the abutment and the abutment screw according to the abutment connection form had difference among them, and the stress distribution pattern usually had a widely distributed tendency along the inner surface of the implant fixture contacting the abutment post. The magnitude of the stress distributed in the supporting bone, the implant fixture, the abutment and the abutment screw was higher in the friction-fit joint than in the slip-fit joint. But it is considered that the further study is necessary about how this difference in the magnitude of the stress have an effect on the practical clinic.
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