Tomographic analysis of the interalveolar space and thickness of the vestibular cortical bone in the parasymphyseal region of adult human mandibles

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dc.contributor.authorFernandes, Atson Carlos de Souza
dc.contributor.authorUzêda, Sandra de Quadros [UNIFESP]
dc.contributor.authorSmith, Ricardo Luiz [UNIFESP]
dc.contributor.authorAlonso, Luis Garcia [UNIFESP]
dc.contributor.authorGonzalez, Fabio Mota
dc.contributor.authorSantos, Marcos Vinicius
dc.contributor.institutionUniv Estado Bahia
dc.contributor.institutionEscola Bahiana Med & Saude Publ
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionInst Hematol Feira de Santana
dc.date.accessioned2016-01-24T14:05:43Z
dc.date.available2016-01-24T14:05:43Z
dc.date.issued2010-12-01
dc.description.abstractPurpose the aim of this study was to determine by computed tomography (CT) the interalveolar distance on mandible relative to the canine, first and second pre-molar, and the thickness of the cortical bone in the same region.Methods A hundred adult cadaveric dentate human hemi-mandibles were examined. A point (P) above the upper margin of the mental foramen was determined, the height at which monocortical screws are inserted to place miniplate according to the technique to treat mandibular fracture. Then, points A, B and C at the same height as point P, referring to the dental units namely canine, first and second pre-molars were marked to determine the CT cut level to measure cortical bone thickness and the interalveolar distance.Results the figures showed no statistically significant difference between the sides. the thickness of the vestibular cortical bone was less than 3.0 mm in 96% of the samples. in 91% of the samples the interalveolar distance between canine, first and second pre-molars was greater than 2 mm, a potentially safe condition to insert 2.0-mm diameter monocortical screws at the study points.Conclusions the individual actual anatomy of the region where screws are to be inserted above the mental foramen is important to perform the technique safely. We believe that the minimal cortical thickness to obtain sufficient screw anchorage should be studied in order to determine the actually safe shortest screw length. It is important to minimize the risk of tooth root damage or nerve injury and the amount of titanium in the human tissues.en
dc.description.affiliationUniv Estado Bahia, DCV, BR-41195001 Salvador, BA, Brazil
dc.description.affiliationEscola Bahiana Med & Saude Publ, BR-41150100 Salvador, BA, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Morfol & Genet, Disciplina Anat Descrit & Topog, BR-04023900 São Paulo, Brazil
dc.description.affiliationInst Hematol Feira de Santana, BR-44001550 Feira de Santana, BA, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Morfol & Genet, Disciplina Anat Descrit & Topog, BR-04023900 São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent951-956
dc.identifierhttp://dx.doi.org/10.1007/s00276-010-0659-8
dc.identifier.citationSurgical and Radiologic Anatomy. Paris: Springer France, v. 32, n. 10, p. 951-956, 2010.
dc.identifier.doi10.1007/s00276-010-0659-8
dc.identifier.issn0930-1038
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/33112
dc.identifier.wosWOS:000285307600009
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofSurgical and Radiologic Anatomy
dc.rightsAcesso restrito
dc.rights.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.subjectMorphometryen
dc.subjectMandibleen
dc.subjectInteralveolar spaceen
dc.subjectMonocortical screwsen
dc.subjectComputed tomographyen
dc.titleTomographic analysis of the interalveolar space and thickness of the vestibular cortical bone in the parasymphyseal region of adult human mandiblesen
dc.typeArtigo
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