A three-dimensional finite element analysis of the osseointegration progression in the human mandible

Enas Esmail; Noha Hassan; Yasser Kadah

doi:10.1117/12.844097

23 February 2010 A three-dimensional finite element analysis of the osseointegration progression in the human mandible

Enas Esmail, Noha Hassan, Yasser Kadah

Proceedings Volume 7625, Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling; 76253F (2010) https://doi.org/10.1117/12.844097
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

Abstract

In this study, three-dimensional (3D) finite element analysis was used to model the effect of the peri-implant bone geometry and thickness on the biomechanical behavior of a dental implant/supporting bone system. The 3D finite element model of the jaw bone, cancellous and cortical, was developed based on computerized tomography (CT) scan technology while the dental implant model was created based on a commercially available implant design. Two models, cylindrical and threaded, representing the peri-implant bone region were simulated. In addition, various thicknesses (0.1 mm, 0.3 mm, 0.5 mm) of the peri-implant bone region were modeled to account for the misalingnment during the drilling process. Different biomechanical properties of the peri-implant bone region were used to simulate the progression of the osseointegration process with time. Four stages of osseointegration were modeled to mimic different phases of tissue healing of the peri- implant region starting with soft connective tissue and ending with complete bone maturation. For the realistic threaded model of the peri-implant bone region, the maximum von Mises stress and displacement in the dental implant and jaw bone were higher than those computed for the simple cylindrical peri-implant bone region model. The average von Mises stress and displacement in the dental implant and the jaw bone decreased as the oseeointegration progressed with time for all thicknesses of the peri-implant bone region. On the other hand, the maximum absolute vertical displacement of the dental implant increased as the drilled thickness of the peri-implant bone region increased.

Citation Download Citation

Enas Esmail, Noha Hassan, and Yasser Kadah "A three-dimensional finite element analysis of the osseointegration progression in the human mandible", Proc. SPIE 7625, Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling, 76253F (23 February 2010); https://doi.org/10.1117/12.844097

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