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In vitro resistance of titanium and resorbable (poly L-co-DL lactic acid) osteosynthesis in mandibular body fracture.
Rodríguez-Chessa, J; Olate, S; Netto, H D; Noia, C; de Moraes, M; Mazzonetto, R.
Afiliação
  • Rodríguez-Chessa J; Division of Oral and Maxillofacial Surgery, Dental School, Universidad San Martin de Porres, Peru.
  • Olate S; Division of Oral and Maxillofacial Surgery, Dental School, Universidad de La Frontera, Chile; Center for Biomedical Research, Universidad Autónoma de Chile, Chile. Electronic address: sergio.olate@ufrontera.cl.
  • Netto HD; Division of Oral and Maxillofacial Surgery, Dental School, Federal University of Juiz de Fora, Brazil.
  • Noia C; Division of Oral and Maxillofacial Surgery, Dental School, Federal University of Juiz de Fora, Brazil.
  • de Moraes M; Division of Oral and Maxillofacial Surgery, Piracicaba Dental School, State University of Campinas, Brazil.
  • Mazzonetto R; Division of Oral and Maxillofacial Surgery, Piracicaba Dental School, State University of Campinas, Brazil.
Int J Oral Maxillofac Surg ; 43(3): 362-6, 2014 Mar.
Article em En | MEDLINE | ID: mdl-24094615
This study was a comparative evaluation of the bending resistance of metallic and resorbable plates and screws in a mandibular body fracture model. Forty polyurethane synthetic hemimandibles were used; a vertical linear cut was made between the second and first premolars. These 40 hemimandibles were divided into four groups of 10 and were fixed with titanium plates and screws or resorbable plates and screws, with monocortical screws in the upper sector and bicortical screws in the lower sector. Bending resistance tests were done on a universal testing machine with a linear displacement speed of 1mm/min, a cell load of 500 N, and a load cell on the lower central incisor or on the lower second premolar. Results were analyzed using the Student's t-test, with the significance level set at 5%. No statistically significant differences were observed between the groups studied, either in the analysis of the osteosynthesis materials or related to the load-bearing points. The variables of displacement and peak load did not present any significant differences. In this in vitro model of a mandibular body fracture, the mechanical behaviour of a resorbable osteosynthesis was similar to that of a titanium osteosynthesis.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fixação Interna de Fraturas / Fraturas Mandibulares Tipo de estudo: Prognostic_studies Limite: Humans Idioma: En Revista: Int J Oral Maxillofac Surg Assunto da revista: ODONTOLOGIA Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Peru País de publicação: Dinamarca
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fixação Interna de Fraturas / Fraturas Mandibulares Tipo de estudo: Prognostic_studies Limite: Humans Idioma: En Revista: Int J Oral Maxillofac Surg Assunto da revista: ODONTOLOGIA Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Peru País de publicação: Dinamarca