DOI:

10.37988/1811-153X_2023_1_106

Finite element analysis of the influence of the angle of application of force and displacement during dental implantation operations

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Authors

  • P.O. Grishin 1, PhD in Medical Sciences, associate professor of the Maxillofacial surgery Department
    ORCID ID: 0000-0002-8232-381X
  • G.T. Saleeva 1, PhD in Medical Sciences, full professor of the Prosthodontics Department
    ORCID ID: 0000-0001-9751-0637
  • R.A. Saleev 1, PhD in Medical Sciences, full professor of the Prosthodontics Department, dean of the Dental Faculty
    ORCID ID: 0000-0003-3604-7321
  • E.V. Mamaeva 1, PhD in Medical Sciences, full professor of the Pediatric dentistry Department
    ORCID ID: 0000-0002-4087-2212
  • E.A. Kalinnikova 2, resident of the Surgical dentistry Department
    ORCID ID: 0000-0003-3828-614X
  • 1 Kazan State Medical University, 420012, Kazan, Russia
  • 2 Institute of Medical Education of the Chuvash Republic Ministry of Health, 428018, Cheboksary, Russia

Abstract

The objective was to determine the magnitude of stresses in the bone tissue surrounding the implant when it is placed vertically or in a displaced configuration, with an assessment of the effect of axial and nonaxial loading. >. Three-dimensional finite element analysis (FEA) was performed at various angles of implant inclination to determine and compare stresses in the implant, surrounding bone, implant-bone interface, and abutment-implant interface, and to determine the optimal options for placing the implants in different configurations (straight or angled). As an example, a cylindrical BioSink implant and a conical Vega (Humana Dental) with a diameter of 3.5 mm and a length of 11.5 mm were modeled with the corresponding screw-retained abutments. This FEM model makes it possible to simulate different clinical situations and determine the best option for implant and prosthetic placement from a biomechanical point of view. >. The maximum stress in the bone tissue surrounding the implant was determined with the vertical load of the implant. Changing the angle of force application by 10° resulted in an increase in tension in the bone tissue surrounding the implant. At the same time, the resulting displacement fully compensates for the increase in stress. In the lingual and buccal implant placement models, the main Mises stress values occurred in the mesial and distal regions of the implant with vertical loading. The highest stress was observed at the implant neck for both the straight and angled systems. No stress concentrations were detected at the inner and outer corners of the angled implants, nor in the area of the peri-implant slot along the implant body or at the apex.

Key words:

dentistry, dental implants, mathematical modeling, 3D finite element analysis, stress, tilt angle

For Citation

[1]
Grishin P.O., Saleeva G.T., Saleev R.A., Mamaeva E.V., Kalinnikova E.A. Finite element analysis of the influence of the angle of application of force and displacement during dental implantation operations. Clinical Dentistry (Russia).  2023; 26 (1): 106—113. DOI: 10.37988/1811-153X_2023_1_106

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Received

November 21, 2022

Accepted

February 21, 2023

Published on

March 22, 2023