Advances in Computing
pISSN: 21632944 eISSN: 21632979
2012; 2(5): 6675
doi: 10.5923/j.ac.20120205.01
Yaser M. Alkhiary ^{1}, Tamer M. Nassef ^{2}, Inas A. Yassine ^{3}, Seham B.Tayel ^{1}, Abd ElSalam kh.Ezzat ^{1}
^{1}Prosthodontics department, King Abdulaziz University, Faculty of Dentistry. Jeddah, Saudi Arabia.
^{2}Computer and Software Engineering, Misr University for Science and Technology (MUST), Giza, Egypt
^{3}Systems and Biomedical Engineering, Cairo University, Giza, Egypt
Correspondence to: Tamer M. Nassef , Computer and Software Engineering, Misr University for Science and Technology (MUST), Giza, Egypt.
Email: 
Copyright © 2012 Scientific & Academic Publishing. All Rights Reserved.
From the anatomical and biomechanical points of view, temporomandibular joint (TMJ) is sophisticated bicondylar articulatory complex with great demand on neuromuscular control with a frequency of motion indicated up to 2000 periods per day. This makes the TMJ one of the most frequently exerted joints of the human body and in conjunction with individual uniqueness of this joint places high demand on its design and reliability. Experimental studies concerning the distribution of the loads in the TMJ have been performed on animal models. Numerical modeling provides more understanding of joint physiology and pathogenesis of the joint diseases. Magnetic resonance imaging (MRI) has replaced computed tomography (CT) and arthrography as the primary modality in the evaluation of the TMJ. At this study a new numerical method are used to build 3D model of TMJ from 2D MRI scans and applied some stressstrain analysis to validate this model for different normal and abnormal patients. These models are based on multiobject reconstruction technique and tetrahedral elements building
Keywords: Finite Element Model, Temporomandibular Joint Stress Analysis, 3D Reconstruction Modeling
Cite this paper: Yaser M. Alkhiary , Tamer M. Nassef , Inas A. Yassine , Seham B.Tayel , Abd ElSalam kh.Ezzat , "A New Numerical Model to Analyze Stress Distribution of TMJ Disc from 2D MRI Scans", Advances in Computing, Vol. 2 No. 5, 2012, pp. 6675. doi: 10.5923/j.ac.20120205.01.
Figure 3. (A) Retrodiscal Ligaments superior and inferior (B) TMJ Ligaments 



Figure 4. Stresses were normally distributed for the normal disccondyle, forces are 1662 (MPa) for normal and 94120 (MPa) for high force at anterior region. 
Figure 5. Showed a stress distribution of von mises of disc displacement of grade II that have greatest stress in all the regions with an objectionable random 
Figure 6. Von Mises stress distribution, lower stresses 1 47 (MPa) with blue and green zones for disc and 169260 (MPa) with red zones for lateral region. 
Figure 7. Von Mises stress distribution of grade III disc displacement, high forces with red and orange zones are for disc with very scant blue and green zones. 
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