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KMID : 0362120150370030115
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Journal of Technologic Dentistry
2015 Volume.37 No. 3 p.115 ~ p.120
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Finite Element Analysis of Supporting Bone according to Custom Abutment Angles
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남민경:Nam Min-Gyeong
김남식:Kim Nam-Sic
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Abstract
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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 and the length of 13 . The fixture and abutment was designed by a combination of the abutment screw clamping force to produce a custom abutment model of 0°, 15 , 25° and 35°. 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 90° 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 ( ) 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 35° abutment over the current clinical tolerance limits will be available for clinical application.
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KEYWORD
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Custom abutments, finite element method, von Mises stress
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