Biomechanical in vitro evaluation of three stable internal fixation techniques used in sagittal osteotomy of the mandibular ramus: A study in sheep mandibles

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade do Sagrado Coração-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorPrivate Practice-
Autor(es): dc.contributorMaxillofacial Surgery-
Autor(es): dc.creatorde Olivera, Leandro Benetti-
Autor(es): dc.creatorSant'ana, Eduardo-
Autor(es): dc.creatorManzato, Antonio José-
Autor(es): dc.creatorGuerra, Fábio Luis Bunemer-
Autor(es): dc.creatorArnett, G. William-
Data de aceite: dc.date.accessioned2025-08-21T22:34:24Z-
Data de disponibilização: dc.date.available2025-08-21T22:34:24Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2012-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/S1678-77572012000400006-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/232098-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/232098-
Descrição: dc.descriptionAmong the osteotomies performed in orthognathic surgery, the sagittal osteotomy of the mandibular ramus (SOMR) is the most common, allowing a great range of movements and stable internal fixation (SIF), therefore eliminating the need of maxillomandibular block in the postoperative period. ObjectiveS: The purpose of this study was to evaluate the biomechanical resistance of three national systems used for SIF in SOMR in sheep mandibles. Material and Methods: The study was performed in 30 sheep hemi-mandibles randomly divided into 3 experimental groups, each containing 10 hemi-mandibles. The samples were measured to avoid discrepancies and then subjected to SOMR with 5-mm advancement. In group I, 2.0x12 mm screws were used for fixation, inserted in an inverted L pattern (inverted L group). In group II, fixation was performed with two 2.0x12 mm screws, positioned in a linear pattern and a 4-hole straight miniplate and four 2.0x6.0 mm monocortical screws (hybrid group). In group III, fixation was performed with two 4-hole straight miniplates and eight 2.0x6.0 mm monocortical screws (mini plate group). All materials used for SIF were supplied by Osteosin - SIN. The hemimandibles were subjected to vertical linear load test by Kratos K2000MP mechanical testing unit for loading registration and displacement. Results: All groups showed similar resistance during mechanical test for loading and displacement, with no statistically significant differences between groups according to analysis of variance. Conclusion: These results indicate that the three techniques of fixation are equally effective for clinical fixation of SOMR.-
Descrição: dc.descriptionUniversidade do Sagrado Coração, Bauru, SP-
Descrição: dc.descriptionBauru School of Dentistry University of São Paulo, Bauru, SP-
Descrição: dc.descriptionUniv. Estadual Paulista - UNESP, São José do Rio Preto, SP-
Descrição: dc.descriptionPrivate Practice, São José do Rio Preto, SP-
Descrição: dc.descriptionMaxillofacial Surgery, Santa Barbara, CA-
Descrição: dc.descriptionUniv. Estadual Paulista - UNESP, São José do Rio Preto, SP-
Formato: dc.format419-426-
Idioma: dc.languageen-
Relação: dc.relationJournal of Applied Oral Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBone plates-
Palavras-chave: dc.subjectBone screws-
Palavras-chave: dc.subjectMandible-
Palavras-chave: dc.subjectOsteotomy-
Título: dc.titleBiomechanical in vitro evaluation of three stable internal fixation techniques used in sagittal osteotomy of the mandibular ramus: A study in sheep mandibles-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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