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dc.contributor.authorSchuetza, Teresa Cristina Barros [UNIFESP]
dc.contributor.authorDominguez, Gladys Cristina [UNIFESP]
dc.contributor.authorPradella-Hallinan, Márcia Lurdes de Cássia [UNIFESP]
dc.contributor.authorCunha, Thays Crosara Abrahao [UNIFESP]
dc.contributor.authorTufik, Sergio [UNIFESP]
dc.date.accessioned2016-01-24T14:06:14Z
dc.date.available2016-01-24T14:06:14Z
dc.date.issued2011-03-01
dc.identifierhttp://dx.doi.org/10.2319/052710-233.1
dc.identifier.citationAngle Orthodontist. Newton N: E H Angle Education Research Foundation, Inc, v. 81, n. 2, p. 222-228, 2011.
dc.identifier.issn0003-3219
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/33501
dc.description.abstractObjective: To examine modifications in sleep pattern and in craniofacial morphology of adolescents with mandibular retrognathism.Materials and Methods: Sixteen subjects at maximum pubertal growth (12.6 years [+/- 11.5 months]) were selected and treated for 12 months with maxillary expansion and mandibular advancement with a Herbst appliance. Cephalometric radiography and magnetic resonance imaging were obtained prior to and after treatment and were compared using the paired Student's t-test or the nonparametric Wilcoxon rank-sum test. Four polysomnographic recordings were obtained with pressurized nasal cannulae and were analyzed by analysis of variance.Results: the length of the mandible was increased, while the antero-posterior position of the maxilla remained stable. the posterior airway space was increased, the length of the tongue was preserved, and the hyoid bone was moved to a more anterior position. After Herbst treatment, sleep efficiency, sleep latency, rapid eye movement (REM) sleep latency, and percentage of REM sleep remained stable. We did observe a reduction (P < .05) in the relative proportions of stage 1 and stage 3-4 (from 4.30 +/- 1.99 to 2.61 +/- 1.83 for stage 1 and from 25.78 +/-. 7.00 to 19.17 +/- 7.58 for stages 3-4) as well as an increase (P < .01) in the percentage of stage 2 after treatment (49.03 +/- 6.25 to 56.90 +/- 6.22). There was a reduction (P < .05) in the number of respiratory effort related arousals (7.06 +/- 5.37 to 1.31 +/- 1.45 per hour of sleep) due to an increase (P < .01) in airway volume.Conclusions: in the short term, the increase in airway space improved nocturnal breathing associated with the correction of mandibular retrognathism. (Angle Orthod. 2011;81:222-228.)en
dc.description.sponsorshipAssociacao Fundo de Incentivo a Psicofarmacologia (AFIP)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent222-228
dc.language.isoeng
dc.publisherE H Angle Education Research Foundation, Inc
dc.relation.ispartofAngle Orthodontist
dc.rightsAcesso aberto
dc.subjectAdolescentsen
dc.subjectMandibular retrognathismen
dc.subjectSleep-disordered breathingen
dc.subjectPolysomnographyen
dc.subjectUpper airway volumeen
dc.titleClass II correction improves nocturnal breathing in adolescentsen
dc.typeArtigo
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.description.affiliationUniversidade Federal de São Paulo, Dept Psychobiol, BR-04024002 São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Paulo, Dept Orthodont, BR-04024002 São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Psychobiol, BR-04024002 São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, Dept Orthodont, BR-04024002 São Paulo, Brazil
dc.description.sponsorshipIDFAPESP: CEPID 98/14303-3
dc.identifier.fileWOS000287642500007.pdf
dc.identifier.doi10.2319/052710-233.1
dc.description.sourceWeb of Science
dc.identifier.wosWOS:000287642500007


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