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Comparative evaluation of different fixation techniques of the sagittal split ramus osteotomy in 10 mm advancements: Mechanical testing and screw insertion torque

dc.contributor.authorSigua-Rodriguez E.A.
dc.contributor.authorde Medeiros R.C.
dc.contributor.authorGoulart D.R.
dc.contributor.authorBomfim-Azevedo V.L.
dc.contributor.authorOlate S.
dc.contributor.authorde Albergaria-Barbosa J.R.
dc.date.accessioned2020-09-02T22:28:16Z
dc.date.available2020-09-02T22:28:16Z
dc.date.issued2018
dc.identifier10.1016/j.jcms.2018.09.011
dc.identifier.citation46, 12, 2082-2087
dc.identifier.issn10105182
dc.identifier.urihttps://hdl.handle.net/20.500.12728/6258
dc.descriptionPurpose: To compare the mechanical characteristics of five techniques for the functionally stable fixation of simulated sagittal split ramus osteotomy with 10 mm of advancement and to evaluate the screw insertion torque. Materials and methods: Fifty polyurethane hemimandibles with sagittal split ramus osteotomy and containing an advancement of 10 mm fixed and distributed as follows: Customized 3D Plate Group: 1 customized 3D miniplate; 4-Hole Plate Group: 2 miniplates with 4 holes; 6-Hole Plate Group: 2 miniplates with 6 holes; Hybrid Group: 1 flat miniplate with 4 holes and 1 bicortical screw; and Bicortical Screw Group: 3 bicortical screws. We conducted a mechanical test using vertical linear loading with a displacement velocity of 1 mm/min on a universal testing machine and assessed the screw insertion torque using a digital torque wrench. Results: The means of strength for the 1-, 3- and 5-mm displacements were determined by a one-way analysis of variance (ANOVA) followed by the post hoc Tukey test. Statistically significant differences were observed only for the 5-mm displacement (F = 3.36; p = 0.01). There was a difference between the 4-H2P and HG groups (p = 0.04). Conclusion: The customized miniplate, the fixation methods with three bicortical screws, or with two straight miniplates with either 4 or 6 holes, all offer a similar mechanical resistance suitable for fixation. © 2018 European Association for Cranio-Maxillo-Facial Surgery
dc.language.isoen
dc.publisherChurchill Livingstone
dc.subjectComputer-aided design
dc.subjectMandible
dc.subjectOsteotomy
dc.subjectSagittal split ramus
dc.subjectpolyurethan
dc.subjectArticle
dc.subjectassociation
dc.subjectclinical article
dc.subjectcomparative study
dc.subjectcomputer aided design
dc.subjectcontrolled study
dc.subjectevaluation study
dc.subjecthuman
dc.subjecthybrid
dc.subjectmandibular nerve
dc.subjectmaxillofacial surgery
dc.subjectmechanical stimulus test
dc.subjectosteotomy
dc.subjectsagittal split ramus osteotomy
dc.subjectscrew insertion torque
dc.subjecttorque
dc.subjectanatomic model
dc.subjectbiomechanics
dc.subjectbone plate
dc.subjectbone screw
dc.subjectdental procedure
dc.subjectdevices
dc.subjectequipment design
dc.subjectmandible
dc.subjectoral surgery
dc.subjectsagittal split ramal osteotomy
dc.subjecttorque
dc.subjectBiomechanical Phenomena
dc.subjectBone Plates
dc.subjectBone Screws
dc.subjectDental Stress Analysis
dc.subjectEquipment Design
dc.subjectJaw Fixation Techniques
dc.subjectMandible
dc.subjectModels, Anatomic
dc.subjectOsteotomy, Sagittal Split Ramus
dc.subjectPolyurethanes
dc.subjectTorque
dc.titleComparative evaluation of different fixation techniques of the sagittal split ramus osteotomy in 10 mm advancements: Mechanical testing and screw insertion torque
dc.typeArticle


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