title: Finite element evaluation of three methods of stable fixation of condyle base fractures.
abstract: The surgical treatment of mandibular condyle fractures currently offers several possibilities for stable internal fixation. In this study, a finite element model evaluation was performed of three different methods for osteosynthesis of low subcondylar fractures: (1) two four-hole straight plates, (2) one seven-hole lambda plate, and (3) one four-hole trapezoidal plate. The finite element model evaluation considered a load applied to the first molar on the contralateral side to the fracture. Results showed that, although the three methods are capable of withstanding functional loading, the lambda plate displayed a more homogeneous stress distribution for both osteosynthesis material and bone and may be a better method when single-plate fixation is the option.
authors.affiliation: Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Brazil. Electronic address: giorgepessoa@ufam.edu.br.
authors.forename: G P
authors.initials: GP
authors.lastname: de Jesus
authors.affiliation: Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Brazil.
authors.forename: L G
authors.initials: LG
authors.lastname: Vaz
authors.affiliation: Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Brazil.
authors.forename: M F R
authors.initials: MF
authors.lastname: Gabrielli
authors.affiliation: Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Brazil.
authors.forename: L A
authors.initials: LA
authors.lastname: Passeri
authors.affiliation: Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Brazil.
authors.forename: T
authors.initials: T
authors.lastname: V Oliveira
authors.affiliation: Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Brazil.
authors.forename: P Y
authors.initials: PY
authors.lastname: Noritomi
authors.affiliation: Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University (UNESP), Brazil.
authors.forename: P
authors.initials: P
authors.lastname: Jürgens
mesh_terms: D001860:Bone Plates; D001863:Bone Screws; D020342:Finite Element Analysis; D005593:Fracture Fixation, Internal / Q000295:instrumentation / Q000379:methods*; D006801:Humans; D019248:Jaw Fixation Techniques / Q000295:instrumentation; D008335:Mandibular Condyle / Q000293:injuries*; D008337:Mandibular Fractures / Q000601:surgery*; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D014025:Titanium
keywords: finite element analysis; mandibular condyle; mechanical processes