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VOLUME 6 , ISSUE 2--3 ( September-December, 2018 ) > List of Articles

Original Article

To Evaluate the Influence of Implant Length on Stress Distribution of Osseointegrated Implant: A Three-Dimensional Finite Element Analysis: An In Vitro Study

Neha Jindal, Manjit Kumar, Shailesh Jain, Raman, Navjot Kaur

Keywords : dental implant, finite element analysis study, implant length, masticatory load, stress analysis, von Mises stress

Citation Information : Jindal N, Kumar M, Jain S, Raman, Kaur N. To Evaluate the Influence of Implant Length on Stress Distribution of Osseointegrated Implant: A Three-Dimensional Finite Element Analysis: An In Vitro Study. 2018; 6 (2--3):97-105.

DOI: 10.1055/s-0038-1677646

License: CC BY-NC-ND 4.0

Published Online: 29-01-2019

Copyright Statement:  © 2018 Bhojia Dental College and Hospital affiliated to Himachal Pardesh University


Abstract

Finite element analysis is a technique for obtaining a solution to a complex mechanical problem by dividing the problem domain into a collection of much smaller and simpler domains (elements) in which the field variables can be interpolated with the use of shape functions. An overall approximated solution to the original problem is determined based on variational principles. Finite element analysis can provide a nondestructive system for quantifying stresses generated at the various interfaces of similar or dissimilar material. The finite element method also allows the study of the internal state of stress of components as well as stress patterns in two or more dissimilar materials adjacent to each other without affecting their independent behavior. This method is therefore ideally suitable for the biomechanical analysis of orthopedic, cardiovascular, and dental structures. In this study, implants of different length were numerically analyzed using bone-implant models developed from computed tomography-generated images of the mandible with osseointegrated implants. The impact of various lengths on stress distribution was examined using implants with a length of 8, 10, and 13 mm in mandibular first molar region under axial load of 100 N and buccolingual load of 50 N. All materials were assumed to be linearly elastic and isotropic. The Statistical Package for the Social Sciences software package was used for statistical analysis. Maximum von Mises stresses were located around the implant neck. It was demonstrated that there was statistically nonsignificant decrease in von Mises stress as the implant length increased. Within the limitations of this study, there was statistically nonsignificant decrease in von Mises stress as the implant length increased.


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