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Comparison of Stability of Fracture Segments in Mandible Fracture Treated with Different Designs of Mini-Plates Using FEM Analysis

  • Comparative Study
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Journal of Maxillofacial and Oral Surgery Aims and scope Submit manuscript

Abstract

Aim

To compare the displacement gap of mandible fracture segments treated with different designs of mini-plates under various loading conditions.

Materials and Methods

Fracture in the body of mandible was bridged with 15 different designs and configuration of titanium mini-plates. Bite forces were applied at 3 locations, ipsilateral fractured side, contra lateral side and incisor site. 3D finite element methods (FEM) model of mandible was generated using 10 nodal tetrahedral elements. A commercial FE solver was used to solve bone inter fragmentary displacement during loading.

Results

Superior position of mini-plates produced better stability than inferior position. Positive bending moments can be reduced by larger plate in lower border in 2 plate system. Results of X mini-plate are comparable to 2 plate configuration. If length of middle portion of plate increased, stability decreased. Number of screws did not affect fracture stability.

Conclusion

Finite element methods analysis is used to determine the gap between mandible fragments which is otherwise impossible to measure clinically. The results obtained from this study offered us a choice of mini-plate design and configuration for clinical application.

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Authors and Affiliations

  1. Department of Oral and Maxillofacial Surgery, S. Nijalingappa Institute of Dental Sciences, Sedam Road, Gulbarga, 585105, Karnataka, India

    Udupikrishna Joshi & Manju Kurakar

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  1. Udupikrishna Joshi
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  2. Manju Kurakar
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Correspondence to Udupikrishna Joshi or Manju Kurakar.

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Joshi, U., Kurakar, M. Comparison of Stability of Fracture Segments in Mandible Fracture Treated with Different Designs of Mini-Plates Using FEM Analysis. J. Maxillofac. Oral Surg. 13, 310–319 (2014). https://doi.org/10.1007/s12663-013-0510-y

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  • DOI: https://doi.org/10.1007/s12663-013-0510-y

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