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Updated: Feb 23, 2026
A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
Finite element analysis of customized implant in mandibular reconstruction after tumor resection with and without
Sandeep Dahake1, Abhaykumar Kuthe1, Sanket Kulkarni2
1Mechanical Engineering Department, Visvesvaraya National Institute of Technology, Nagpur, India.
Objectives:
The aim of this work was to compare different 12 cases (3 patients * 4 cases = 12 cases) with varying gaps between implant and bone by analyzing the effect of these gaps on implant and screws using FEM.
Methods:
In each patient's case 1 using CSOG and in case 2, 3, and 4 without using CSOG tumor cutting was done. Hence in each patient zero gaps at case 1 and overcutting at case 2, 3, and 4 have obtained at different locations.
Results:
FEM results reveal that in each patient's case 4 (maximum gap) was more susceptible to loosening of the screws due to higher strains (37%) and implant failure due to higher stress (28%) concentration under the same loading conditions when compared with case 1 (zero gap).
Conclusions:
The study reveals that mandibular reconstruction with implant placement using CSOG can significantly enhance the stability and safety of the implant.
