Evaluating the impact of length and thread pitch on the stress distribution in dental implants and surrounding bone using finite element method

Subject Areas : Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering

مسیح فیروزبخت ¹ , حامد عجبی نائینی ² , مصطفی پیرمرادیان ³

1 - کارشناسی ارشد، دانشکده مکانیک، دانشگاه آزاد اسلامی، واحد خمینی شهر، اصفهان، ایران
2 - استادیار، دانشکده مکانیک، دانشگاه آزاد اسلامی، واحد خمینی شهر، اصفهان، ایران
3 - استادیار، دانشکده مکانیک، دانشگاه آزاد اسلامی، واحد خمینی شهر، اصفهان، ایران

Received: 2016-11-21 Accepted : 2017-03-08 Published : 2638-04-21

Keywords: Implant-abutment, Cancellous bone, Cortical bone, Stress Finite element method,

Abstract :

longevity of osseointegrated implants are intensely influenced by biomechanical factors. Control of these factors prevents mechanical complications, which include fracture of screws, components, or materials veneering the framework. In this study, the impact of length and threads pitch of dental implants on the stress distribution and maximum Von Mises stress in implant-abutment complex and jaw bone are studied using finite element method. The implant length changes from 8.5 mm to 13 mm and a range of 0.6 mm to 1 mm is considered for the threads pitch of implants. The maximum stresses are observed in implant-abutment complex, cortical bone and cancellous bone, respectively. Results suggest a length of 13 mm in a pitch of 0.7 mm for implants. Also, an optimal ratio for the pitch and length of an implant is proposed.

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