Finite Element Analysis of Supporting Bone according to Custom Abutment Angles

Title & Authors
Finite Element Analysis of Supporting Bone according to Custom Abutment Angles
Nam, Min-Gyeong; Kim, Nam-Sic;

Abstract
Purpose: The purpose of this study is a finite element analysis of supporting bone according to custom abutment angle. Methods: Implant fixture was selected with a diameter of 4 mm and the length of 13 mm. The fixture and abutment was designed by a combination of the abutment screw clamping force to produce a custom abutment model of $\small{0^{\circ}}$, $\small{15^{\circ}}$, $\small{25^{\circ}}$ and $\small{35^{\circ}}$. The loading condition of 176 N was applied to the lingual surface of the crown, near to the incisor edge, and horizontal load. An oblique load of $\small{90^{\circ}}$ was applied long axis of the implant fixture analyze the stress of supporting bone. Results: The result of mechanical analysis was observed that the supporting bone stress analysis of the horizontal load, the von Mises stress values (MPa) are given in the order of TH00 (432.6) > TH25 (418.0) > TH15 (417.4) > TH35 (415.8), the oblique load, the von Mises stress values are given in the order of TO00 (459.3) > TO15 (399.6) > TO25 (374.8) > TO35 (343.4) Conclusion: The $\small{35^{\circ}}$ abutment over the current clinical tolerance limits will be available for clinical application.
Keywords
Custom abutments;finite element method;von Mises stress;
Language
Korean
Cited by
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