• Published
    06-03-2024
  • Issue
    Vol: 28 Issue: 01, 2024
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EVALUATION OF STRESS DISTRIBUTION PATTERNS IN BONE AT VARYING LENGTHS, DIAMETERS, FORCE MAGNITUDES AND ANGULATIONS OF MINI-IMPLANTS USING FINITE ELEMENT MODELLING

  • Dr. Sushma Sonawane, Dr. Sameer Narkhede, Dr. Neha Mahajan

Keywords: Bone, Finite Element Analysis, Finite Element Modelling, Mini-implant, Stress Distribution.

ABSTRACT:-
Objectives: Evaluation and comparison of the stress distribution patterns in bone at various lengths, diameters, force magnitudes and angulations of mini- implants using Finite Element Modelling. Methods: FEM model of mini implant and bone model. MI is meshed in diameters of 1.2 mm, 1.4 mm, 1.6 mm, 1.8 mm and 2 mm and in lengths of 6 mm, 7 mm, 8 mm and 9 mm. The optimum implant size of the mini implant with the least resultant stress is evaluated. This implant size is compared with angulation of insertions- 500, 600, 700, 800 and 900 and compared with different force magnitudes of 8 oz, 9 oz, 10 oz, 11 oz and 12 oz. Von Mises stresses in the surrounding bone were measured. Results: As the diameter increased, the stress decreased. As the angle of insertion increased, the stress decreased. As the force applied increased, the stress increased. Length has no significant relation with stress formation in bone. Conclusion: Increasing of the diameter and the angulation of insertion of mini-implant increases the primary stability of the mini-implant.