BIOMECHANICAL ANALYSIS OF AN OPTIMIZED PATIENT-SPECIFIC DENTAL-IMPLANT SCREW IN THE POSTERIOR MANDIBLE

  • N. Selvakumar Department of Mechanical Engineering, Mepco Schlenk Engineering College, Sivakasi – 626005, India
  • Balamurugan P. Department of Mechanical Engineering, Mepco Schlenk Engineering College, Sivakasi – 626005, India
Keywords: FEA, cortical bone, trabecular bone, dental implants, thread profiles, stress distribution

Abstract

Implant design developed considerably with the advancement of restorative dentistry. Examining the stress distribution in the cancellous and cortical bones around custom-made implants with different thread-profile models is the study’s objective. The newly designed implants were made with a diameter and length of 4.5 mm and 11.5 mm. The implants were designed the same, but had different thread profiles. Model A is designed with a standard V-shape thread design, and it was compared with the remaining three dental implants (models B, C, and D) having different customized thread-profile designs. The biomechanical characteristics of the four implant models were compared with the use of biomechanical profiling to predict the mechanical performance of various dental-screw models, including the influence of physiological factors. The stress distribution in the D4 bone area of implants with different thread-profile designs under a vertical load of 100 N at 0° and an oblique load of 223.6 N at 25° was examined using ANSYS Workbench. The trabecular and cortical bones comprise the structure of the D4 bone area. Deformation and stress (von Mises) findings were found for the dental implants and bone. While implant models C and D showed less stress distribution in the cortical and cancellous bone, they nonetheless produced outcomes superior to those of the conventional model A underloading. According to the findings, the unique dental implant design lessens the stress concentration in the cortical bone’s neck area. The suggested model C increases the implant’s stability in that region by distributing a low stress over the D4 bone.

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Published
2023-10-03
How to Cite
1.
Selvakumar N, P.B. BIOMECHANICAL ANALYSIS OF AN OPTIMIZED PATIENT-SPECIFIC DENTAL-IMPLANT SCREW IN THE POSTERIOR MANDIBLE. MatTech [Internet]. 2023Oct.3 [cited 2026Aug.14];57(5):509–518. Available from: https://www.mater-tehnol.si/index.php/MatTech/article/view/907