Abstract
The aim of this study was to evaluate the stress distribution and displacement values
of six different miniplate systems in large mandibular advancement after sagittal
split ramus osteotomy (SSRO) with finite element analysis (FEA). A three-dimensional
model of a mandible was created and a 10 mm advancement SSRO was simulated. The model
was fixed using a four-hole miniplate, a six-hole miniplate, a newly designed six-hole
miniplate and their curved versions. Maximum principal stress values for bone, von
Mises stress values for osteosynthesis materials, and the amount of displacement between
segments were measured. The highest von Mises value was observed in the curved version
of the newly designed six-hole miniplate; the lowest value was detected in the four-hole
curved miniplate. The lowest value of maximum principal stress in the bone was found
in the curved version of the novel design six-hole miniplate. The least displacements
between segments were also recorded in the new design of straight miniplate; therefore,
for large mandibular advancement surgery, this novel six-hole miniplate may be a promising
option with positive biomechanical characteristics.
Keywords
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Article info
Publication history
Published online: July 30, 2022
Accepted:
July 26,
2022
Identification
Copyright
© 2022 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
