Influence of dental chair backrest inclination on the registration of the mandibular position

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dc.contributor.authorCoelho, Mariana Freire
dc.contributor.authorCavalcanti, Bruno das Neves [UNESP]
dc.contributor.authorNeves, Ana Christina Claro
dc.contributor.authorJóias, Renata Pilli [UNESP]
dc.contributor.authorRode, Sigmar de Mello [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de Taubaté (UNITAU)
dc.date.accessioned2015-12-07T15:33:38Z
dc.date.available2015-12-07T15:33:38Z
dc.date.issued2015
dc.description.abstractVarying the inclination of the dental chair backrest might alter the distribution of occlusal contact points. The purpose of this study was to identify the influence of backrest inclination on the registration of the mandibular position. Ten participants aged between 18 and 30 years with a complete permanent dentition, uncompromised motor function, no tooth mobility, and no temporomandibular disorders were selected. To register interocclusal contacts, an autopolymerizing methylmethacrylate device was adapted to the maxillary anterior teeth and a composite resin increment was added to the mandibular central incisors. Contacts were registered with the following variations in the inclination of the dental chair backrest: 90 degrees, 120 degrees, and 180 degrees. A standardized digital photograph was made of each mark in each backrest position, and the images were superimposed to measure the distances in registration from 90 to 120 and from 90 to 180 degrees. Data were analyzed with the Student paired t test (α=.05). When the chair was inclined from the 90-degree to the 120-degree position, the mandible was repositioned posteriorly by a mean of 0.67 mm, but the difference was not statistically significant. When the chair was inclined from the 90-degree to the 180-degree position, however, the mandible was repositioned posteriorly by a statistically significant mean of 1.41 mm. Mandibular position is influenced by increasing inclination, and this influence was statistically significant at a 180-degree incline.en
dc.description.affiliationUniversidade de Taubaté, Departamento de Odontologia
dc.description.affiliationUnespUniversidade Estadual Paulista, Departamento de Odontologia Restauradora, Instituto de Ciência e Tecnologia de São José dos Campos
dc.description.affiliationUnespUniversidade Estadual Paulista, Departamento de Biociências e Diagnóstico Bucal, Instituto de Ciência e Tecnologia de São José dos Campos
dc.description.affiliationUnespUniversidade Estadual Paulista, Departamento de Materiais Odontológicos e Prótese, Instituto de Ciência e Tecnologia de São José dos Campos
dc.format.extent693-695
dc.identifierhttp://dx.doi.org/10.1016/j.prosdent.2015.05.013
dc.identifier.citationThe Journal Of Prosthetic Dentistry, v. 114, n. 5, p. 693-695, 2015.
dc.identifier.doi10.1016/j.prosdent.2015.05.013
dc.identifier.issn1097-6841
dc.identifier.lattes9633326235160414
dc.identifier.lattes3422118958429909
dc.identifier.pubmed26344187
dc.identifier.urihttp://hdl.handle.net/11449/131303
dc.language.isoeng
dc.publisherElsevier B. V.
dc.relation.ispartofThe Journal Of Prosthetic Dentistry
dc.relation.ispartofsjr1,087
dc.rights.accessRightsAcesso restrito
dc.sourcePubMed
dc.titleInfluence of dental chair backrest inclination on the registration of the mandibular positionen
dc.typeArtigo
dcterms.rightsHolderElsevier B. V.
unesp.author.lattes9633326235160414
unesp.author.lattes3422118958429909
unesp.author.orcid0000-0002-4261-4217[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campospt

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Artigos - Odontologia Restauradora - ICT
Artigos - Biociências e Diagnóstico Bucal - ICT
Artigos - Materiais Odontológicos e Prótese - ICT