Biomechanical analysis of titanium fixation plates and screws in sagittal split ramus osteotomies

Atik F., Atac M. S., Ozkan A., Kilinc Y., Arslan M.

NIGERIAN JOURNAL OF CLINICAL PRACTICE, vol.19, no.1, pp.140-144, 2016 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 19 Issue: 1
  • Publication Date: 2016
  • Doi Number: 10.4103/1119-3077.164331
  • Journal Name: NIGERIAN JOURNAL OF CLINICAL PRACTICE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.140-144
  • Keywords: Bone plates, bone screws, finite element analysis, jaw fixation techniques, mandible, mandibular osteotomy, FINITE-ELEMENT-ANALYSIS, IN-VITRO EVALUATION, ADVANCEMENT SURGERY, INTERNAL-FIXATION, MINIPLATE/SCREW SYSTEMS, ORTHOGNATHIC SURGERY, STRESS-DISTRIBUTION, SETBACK SURGERY, PART 1, STABILITY
  • Kocaeli University Affiliated: No

Abstract

Objective: The aim of the study was to evaluate the mechanical behavior of three different fixation methods used in the bilateral sagittal split ramus osteotomy. Materials and Methods: Three different three-dimensional finite element models were created, each corresponding to three different fixation methods. The mandibles were fixed with double straight 4-hole, square 4-hole, and 5-hole Y plates. 150 N incisal occlusal loads were simulated on the distal segments. ANSYS software ((v 10; ANSYS Inc., Canonsburg, PA) was used to calculate the Von Mises stresses on fixative appliances. Results: The highest Von Mises stress values were found in Y plate. The lowest values were isolated in double straight plate group. Conclusions: It was concluded that the use of double 4-hole straight plates provided the sufficient stability on the osteotomy site when compared with the other rigid fixation methods used in this study.