[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit ::
Main Menu
Journal Information::
Editorial Policies::
Articles archive::
For Authors::
Contact us::
Site Facilities::
::
Search in website

Advanced Search
Receive site information
Enter your Email in the following box to receive the site news and information.
Last site contents
:: Contact Us
:: Volume 23, Issue 3 (Foll Text in Persian 2011) ::
J Iran Dent Assoc 2011, 23(3): 148-154 Back to browse issues page
Investigating the effect of bone radius, thickness and strength on stress distribution of bone tissue around a dental implant using finite element method
Mohammad reza Mallakzadeh * 1, Ehsan Atefi , Saeid Nokar
1- , mmallak@iust.ac.ir
Abstract:   (12401 Views)

  Investigating the effect of bone radius, thickness and strength on stress distribution of bone tissue around a dental implant using finite element method

  

  

  Dr. Mallakzadeh MR., 1 Atefi E .,2 Dr. Nokar S .3

  

  1 Assistant Professor, Department of Biomechanics , School of Mechanical Engineering , Iran University of Sciences and Technology . Tehran, Iran. 2 Graduate Student , Department of Biomechanics , School of Mechanical Engineering , Iran University of Sciences and Technology . Tehran, Iran. 3 Assistant Professor, Department of Prosthodontics   Dentistry, School of Dentistry , Tehran University of Medical Sciences. Tehran, Iran.

 

 

  (Received 22 Nov, 2010 Accepted 12 May, 2011)

  

  Abstract

  

  Background and Aim : The goal of this study was to investigate the stability of a dental implant which is implanted in clinical models of the mandible and to evaluate the effectiveness of strength, radius and thickness of the bone around a dental implant by using finite element method.

  Materials and Methods : A 3D wire frame model of the mandible was developed based on computer tomography data of a 25-year-old subject in MIMICS. This model was smoothed in CATIA. Finally, a 3D model of the dental implant was assembled in the mandible and finite element analysis was done on the model with various material properties, loading condition and constraints in ABAQUS.

  Results: In the clinical models, the highest stress was found in the mandible with a thin layer of cortical bone around the core of the cancellous bone with the lowest density. It was shown that increase of the cortical bone radius resulted in the decrease of stress in the mandible. The 2 mm thickness of the cortical bone around a dental implant was evaluated as the critical thickness of the bone.

  Conclusion : Increase of stiffness of the cortical or cancellous bones resulted in increase of the stress in that specific part of the bone. In addition, the increase of the bone thickness was more considerable in less than 2 mm thicknesses.

  Key words : Dental implant – Finite element analysis – Stress distribution – Bone quality

 

  Corresponding Author: Dr. Mallakzadeh MR ., Assistant Professor, Department of Biomechanics , School of Mechanical Engineering , Iran University of Sciences and Technology . Tehran, Iran . 

  e.mail: mmallak@iust.ac.ir

Keywords: Dental implant, Finite element analysis, Stress distribution, Bone quality
Full-Text [PDF 328 kb]   (2448 Downloads)    
Type of Study: Research | Subject: Prosthodontics
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Mallakzadeh M R, Atefi E, Nokar S. Investigating the effect of bone radius, thickness and strength on stress distribution of bone tissue around a dental implant using finite element method. J Iran Dent Assoc 2011; 23 (3) :148-154
URL: http://jida.ir/article-1-1091-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 23, Issue 3 (Foll Text in Persian 2011) Back to browse issues page
Journal of Iranian Dental Association

AWT IMAGE

This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly

Persian site map - English site map - Created in 0.05 seconds with 37 queries by YEKTAWEB 4645