Investigation of The Effect of Different Prosthesis Designs and Numbers on Stress, Strain and Deformation Distribution

Abstract

Dental implant applications for edentulous jaws are today considered a predictable, safe, and daily technique for giving patients new aesthetics and function. However, the success of the implant therapy should be thoroughly investigated for long-term clinical results about the stress distribution in hosting bone tissue and prosthetic components. In this study, the effect of different prosthesis designs on the stress distribution around the abutment and dental implant in bone tissue was investigated using the finite element method (FEM) with Workbench module of the ANSYS package program. The examination focuses on the effect of the number of implants in teeth layouts on the distribution of stresses, strains, and displacements. In the study the historical development of dental implant problems is mentioned, and some previous studies are summarized. Critical information is also given about biomechanics, dental implants, jawbone, teeth, and the finite element method. Totally four different cases, one layout with three implants and three layouts with two implants, were analyzed. Titanium was used as an implant and abutment material. Nobel Active implants and abutments manufactured by Nobel BioCare Company were used for complete toothless lower jaw case. The critical stress, strain, and displacement values were determined for all four different scenarios. As a result, it was concluded that stresses, strains, and displacements have lower values for the design of triple dental implants compared to other layouts.

Keywords

• Biomechanics
• Dental implant
• Finite element method

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