Submitted: 19 Sep 2018
Revised: 30 Dec 2018
Accepted: 03 Jan 2019
First published online: 19 Jan 2019
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J Adv Periodontol Implant Dent. 2018;10(2):77-84.
doi: 10.15171/japid.2018.012
  Abstract View: 26
  PDF Download: 35

Original Article

Finite Element Analysis of Stress and Strain Patterns on Implants in Prostheses Supported by Four or Six Implants: A Review

Abstract

Introduction Tilted implants have been proposed as an alternative to the bone graft procedures in nominated implant sites although with possibly higher stress concentrations. This study aims at reviewing finite element analysis to evaluate stress and strain patterns on implants in prostheses supported by four or six Implants. Materials and Methods An electronic literature search was conducted using the online databases. English published articles of 2003 to 2015 were reviewed. A hundred articles were found related to the subject and after evaluating the titles and abstracts, 18 studies were selected. Results Increasing the number of implants resulted in a reduction in the amount of the produced stress in the bone and implant; while in others, the stress level has not changed with the increase in the number of implants. Placing distal implants in an angular position results in better distribution of the force and stress. Using less cantilever lengths would reduce the stress. Conclusion To avoid extensive bone graft procedures and to optimize utilization of the patient's own bone, using tilted or short implants are alternative methods.
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