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In vitro comparison of 1.5 mm vs. 2.0 mm screws for fixation in the sagittal split osteotomy

dc.contributor.authorde Molon, Rafael Scaf [UNESP]
dc.contributor.authorde Avila, Erica Dorigatti [UNESP]
dc.contributor.authorScartezini, Guilherme Romano [UNESP]
dc.contributor.authorDuarte Bonini Campos, Juliana Alvares [UNESP]
dc.contributor.authorVaz, Luis Geraldo [UNESP]
dc.contributor.authorReal Gabrielli, Mario Francisco [UNESP]
dc.contributor.authorPereira Filho, Valfrido Antonio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:31:59Z
dc.date.accessioned2014-05-20T13:45:29Z
dc.date.available2013-09-30T18:31:59Z
dc.date.available2014-05-20T13:45:29Z
dc.date.issued2011-12-01
dc.description.abstractPurpose: Numerous "in vitro" investigations have been conducted to evaluate the role of screw size and pattern in determining optimal resistance to deformation, often these have been controversial. The aim of this study was to evaluate the effect of screw size and insertion technique on the stability of sagittal split osteotomies.Materials and methods: This study used twenty polyurethane replicas of human hemimandibles with a prefabricated sagittal split ramus osteotomy (SSRO). The hemimandibles were stabilized with 1.5 mm and 2.0 mm titanium screws inserted in an inverted L configuration. All specimens were tested to determine the strength and stability of the fixation.Results: In all cases there was failure of the synthetic bone before there was any evidence of screw failure. There were no significant differences in the load necessary to make the construct fail between the 1.5 or 2.0 mm screw sizes.Conclusion: There was no statistically significant difference between the strengths achieved with screws of 1.5 and 2.0 mm diameters for fixation of SSRO performed in synthetic mandibles. There was no fracture of the 1.5 mm or 2.0 mm diameter screws in any of the tests. 1.5 mm diameter screws in an inverted L pattern have as much stability and mechanical resistance as a 2.0 mm screw, may be safely used for this procedure. (C) 2010 European Association for Cranio-Maxillo-Facial Surgery.en
dc.description.affiliationSão Paulo State Univ UNESP, Dept Diag & Surg, BR-14801903 Araraquara, SP, Brazil
dc.description.affiliationUNESP, Araraquara Dent Sch, Dept Biostat, BR-14801903 Araraquara, SP, Brazil
dc.description.affiliationUNESP, Araraquara Dent Sch, Dept Dent Mat & Prosthesis, BR-14801903 Araraquara, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ UNESP, Dept Diag & Surg, BR-14801903 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Araraquara Dent Sch, Dept Biostat, BR-14801903 Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Araraquara Dent Sch, Dept Dent Mat & Prosthesis, BR-14801903 Araraquara, SP, Brazil
dc.format.extent574-577
dc.identifierhttp://dx.doi.org/10.1016/j.jcms.2010.11.008
dc.identifier.citationJournal of Cranio-maxillofacial Surgery. Edinburgh: Churchill Livingstone, v. 39, n. 8, p. 574-577, 2011.
dc.identifier.doi10.1016/j.jcms.2010.11.008
dc.identifier.issn1010-5182
dc.identifier.lattes8547747556446020
dc.identifier.lattes8029177169916525
dc.identifier.lattes3933940257808182
dc.identifier.urihttp://hdl.handle.net/11449/16009
dc.identifier.wosWOS:000297880800005
dc.language.isoeng
dc.publisherChurchill Livingstone
dc.relation.ispartofJournal of Cranio-Maxillofacial Surgery
dc.relation.ispartofjcr1.960
dc.relation.ispartofsjr1,033
dc.rights.accessRightsAcesso restritopt
dc.sourceWeb of Science
dc.subjectBone screwsen
dc.subjectMandibular advancementsen
dc.subjectOrthognathic surgeryen
dc.subjectSagittal split osteotomyen
dc.titleIn vitro comparison of 1.5 mm vs. 2.0 mm screws for fixation in the sagittal split osteotomyen
dc.typeArtigopt
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderChurchill Livingstone
dspace.entity.typePublication
relation.isDepartmentOfPublication3936e2e2-946a-42ab-8b9d-9521513200fc
relation.isDepartmentOfPublication.latestForDiscovery3936e2e2-946a-42ab-8b9d-9521513200fc
relation.isOrgUnitOfPublicationca4c0298-cd82-48ee-a9c8-c97704bac2b0
relation.isOrgUnitOfPublication.latestForDiscoveryca4c0298-cd82-48ee-a9c8-c97704bac2b0
unesp.author.lattes8547747556446020
unesp.author.lattes8029177169916525
unesp.author.lattes3933940257808182
unesp.author.orcid0000-0003-0916-1962[5]
unesp.author.orcid0000-0003-1110-6233[1]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Odontologia, Araraquarapt
unesp.departmentDiagnóstico e Cirurgia - FOARpt
unesp.departmentMateriais Odontológicos e Prótese - FOARpt

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