Histological evaluation of experimentally induced subluxation in rat molars and its implications on the management of orthodontic treatment

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dc.contributor.authorPozzobon Pereira, Alex Luiz [UNESP]
dc.contributor.authorMendonça, Marcos Rogério de [UNESP]
dc.contributor.authorSonoda, Celso Koogi [UNESP]
dc.contributor.authorCuoghi, Osmar Aparecido [UNESP]
dc.contributor.authorPoi, Wilson Roberto [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2013-09-30T18:30:33Z
dc.date.accessioned2014-05-20T13:43:12Z
dc.date.available2013-09-30T18:30:33Z
dc.date.available2014-05-20T13:43:12Z
dc.date.issued2010-02-01
dc.description.abstractThe purpose of this study was to evaluate the histological alterations occurred in the periradicular region of rat molars after intentional subluxation using an experimental method to induce dentoalveolar trauma. Eighteen adult male Wistar rats (Rattus norvegicus albinus) were selected for the study. The dentoalveolar trauma was experimentally induced by the application of an occlusogingival force on the occlusal surface of the maxillary right first molar using a tensiometer secured on a fully articulated support with adjustable steel shafts. The animals were assigned to six groups (n = 3), according to the intensity of the force applied to induce trauma: Group I (GI, control) - no force application; Groups II-VI (GII-GVI) - the animals were subjected to 600, 700, 800, 900 and 1000 cN force, respectively. After experimental induction of trauma, the animals were sacrificed by anesthetic overdose and the right maxillas were removed and processed for histological analysis under light microscopy. In the animals of GII, GIII and GIV, the histological alterations were similar to those described for GI. GVI (1000 cN) presented the most severe alterations, with the occurrence of buccal bone plate fracture, alveolar fracture and root fracture, which are not present in mild traumatic injuries like subluxation. The 900 cN force (GV) was capable to produce clinical and histological alterations in the gingival and periodontal tissues compatible with those observed in subluxation.en
dc.description.affiliationUNESP, Discipline Orthodont, Dept Pediat & Community Dent, Dent Sch Aracatuba, BR-16015050 Aracatuba, SP, Brazil
dc.description.affiliationUNESP, Discipline Integrated Clin, Dept Surg & Integrated Clin, Dent Sch Aracatuba, BR-16015050 Aracatuba, SP, Brazil
dc.description.affiliationUnespUNESP, Discipline Orthodont, Dept Pediat & Community Dent, Dent Sch Aracatuba, BR-16015050 Aracatuba, SP, Brazil
dc.description.affiliationUnespUNESP, Discipline Integrated Clin, Dept Surg & Integrated Clin, Dent Sch Aracatuba, BR-16015050 Aracatuba, SP, Brazil
dc.format.extent37-42
dc.identifierhttp://dx.doi.org/10.1111/j.1600-9657.2009.00837.x
dc.identifier.citationDental Traumatology. Malden: Wiley-blackwell Publishing, Inc, v. 26, n. 1, p. 37-42, 2010.
dc.identifier.doi10.1111/j.1600-9657.2009.00837.x
dc.identifier.issn1600-4469
dc.identifier.lattes5007703439443544
dc.identifier.lattes8568814008546317
dc.identifier.lattes4185776888167996
dc.identifier.lattes1245541242013543
dc.identifier.urihttp://hdl.handle.net/11449/15042
dc.identifier.wosWOS:000273453800007
dc.language.isoeng
dc.publisherWiley-Blackwell Publishing, Inc
dc.relation.ispartofDental Traumatology
dc.relation.ispartofjcr1.414
dc.relation.ispartofsjr0,724
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleHistological evaluation of experimentally induced subluxation in rat molars and its implications on the management of orthodontic treatmenten
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell Publishing, Inc
unesp.author.lattes5007703439443544
unesp.author.lattes8568814008546317
unesp.author.lattes4185776888167996
unesp.author.lattes1245541242013543
unesp.author.orcid0000-0001-8639-1767[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatubapt

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Artigos - Cirurgia e Clínica Integrada - FOA