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In vitro resistance of titanium and resorbable (poly l-co-dl lactic acid) osteosynthesis in mandibular body fracture

dc.contributor.authorRodríguez-Chessa J.
dc.contributor.authorOlate S.
dc.contributor.authorNetto H.D.
dc.contributor.authorNoia C.
dc.contributor.authorDe Moraes M.
dc.contributor.authorMazzonetto R.
dc.date.accessioned2020-09-02T22:27:06Z
dc.date.available2020-09-02T22:27:06Z
dc.date.issued2014
dc.identifier10.1016/j.ijom.2013.09.001
dc.identifier.citation43, 3, 362-366
dc.identifier.issn09015027
dc.identifier.urihttps://hdl.handle.net/20.500.12728/6052
dc.descriptionThis 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 1 mm/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. © 2013 International Association of Oral and Maxillofacial Surgeons.
dc.language.isoen
dc.subjectmandible fracture
dc.subjectosteosynthesis
dc.subjectresorbable material
dc.subjecttitanium
dc.subjectmandible fracture
dc.subjectosteosynthesis
dc.subjectresorbable material
dc.subjecttitanium
dc.subjectAbsorbable Implants
dc.subjectBone Plates
dc.subjectBone Screws
dc.subjectFracture Fixation, Internal
dc.subjectHumans
dc.subjectLactic Acid
dc.subjectMandibular Fractures
dc.subjectMaterials Testing
dc.subjectModels, Anatomic
dc.subjectOsseointegration
dc.subjectPolymers
dc.subjectStress, Mechanical
dc.subjectTitanium
dc.titleIn vitro resistance of titanium and resorbable (poly l-co-dl lactic acid) osteosynthesis in mandibular body fracture
dc.typeArticle


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