Comparative evaluation of stress distribution and transverse displacement of novel designs of miniplates for sagittal split ramus osteotomy in 10 mm advancements: a finite element analysis.
Br J Oral Maxillofac Surg
; 60(9): 1266-1272, 2022 11.
Article
em En
| MEDLINE
| ID: mdl-36055864
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.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Placas Ósseas
/
Osteotomia Sagital do Ramo Mandibular
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Br J Oral Maxillofac Surg
Ano de publicação:
2022
Tipo de documento:
Article