Dental changes induced by a modified Herbst appliance followed by fixed appliances: A digital dental model analysis

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dc.contributor.authorMarchi, Paulo Guilherme Bittencourt [UNESP]
dc.contributor.authorMuñoz, Juan Francisco Mariscal [UNESP]
dc.contributor.authorde Arruda Aidar, Luís Antônio
dc.contributor.authorMarchi, Luiz Carlos
dc.contributor.authorDominguez, Gladys Cristina
dc.contributor.authorRaveli, Dirceu Barnabé [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionSanta Cecília University (UNISANTA)
dc.contributor.institutionWest Paraná State University (UNIOESTE)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2023-07-29T13:55:19Z
dc.date.available2023-07-29T13:55:19Z
dc.date.issued2023-06-01
dc.description.abstractBackground: Herbst therapy is an effective treatment for Class II malocclusions. However, the maintenance of the effects after fixed appliances treatment remains questionable. This retrospective study aimed to assess, using digital dental models, the sagittal and transverse dental arch changes in young patients during two Class II Division 1 treatment phases, first with modified Herbst appliance (HA) and then with fixed appliances. Methods: The treated group (TG) comprised 32 patients (17 boys, 15 girls; mean age, 12.85 ± 1.16 years) treated with HA and fixed appliances. The control group comprised 28 patients (13 boys, 15 girls; mean age, 12.21 ± 1.35 years) with untreated Class II malocclusions. Digital models were obtained immediately before and after HA therapy and after fixed appliances. Data were statistically analyzed. Results: Compared with the control group, the TG showed an increase in maxillary and mandibular arch perimeters and in intercanine and intermolar arch widths, a decrease in overjet and overbite, and an improvement in canine and molar relationships. In the time after HA therapy until the end of fixed appliances treatment, the TG showed a decrease in maxillary and mandibular arch perimeters, overjet, upper and lower intermolar widths; an increase in molar Class II relationship; and no changes in canine relationship, overbite, and upper and lower intercanine widths. Conclusions: In this sample of patients treated with HA, on average, there was an improvement in the Class II relationship, which seemed to remain after fixed appliances. The transverse dental changes achieved in HA phase relapsed after treatment with fixed appliances.en
dc.description.affiliationStudent PhD Program in Orthodontics School of Dentistry at Araraquara Department of Orthodontics São Paulo State University (UNESP)
dc.description.affiliationProfessor School of Dentistry Santa Cecília University (UNISANTA)
dc.description.affiliationProfessor School of Dentistry West Paraná State University (UNIOESTE)
dc.description.affiliationProfessor Department of Orthodontics University of São Paulo (USP)
dc.description.affiliationProfessor School of Dentistry at Araraquara Department of Orthodontics São Paulo State University (UNESP)
dc.description.affiliationUnespStudent PhD Program in Orthodontics School of Dentistry at Araraquara Department of Orthodontics São Paulo State University (UNESP)
dc.description.affiliationUnespProfessor School of Dentistry at Araraquara Department of Orthodontics São Paulo State University (UNESP)
dc.format.extent131-137
dc.identifierhttp://dx.doi.org/10.1016/j.ejwf.2023.05.002
dc.identifier.citationJournal of the World Federation of Orthodontists, v. 12, n. 3, p. 131-137, 2023.
dc.identifier.doi10.1016/j.ejwf.2023.05.002
dc.identifier.issn2212-4438
dc.identifier.scopus2-s2.0-85159638486
dc.identifier.urihttp://hdl.handle.net/11449/248846
dc.language.isoeng
dc.relation.ispartofJournal of the World Federation of Orthodontists
dc.sourceScopus
dc.subjectAngle Class II
dc.subjectDental models
dc.subjectfunctional
dc.subjectMandibular advancement
dc.subjectOrthodontic appliances
dc.titleDental changes induced by a modified Herbst appliance followed by fixed appliances: A digital dental model analysisen
dc.typeArtigo
unesp.author.orcid0000-0002-5726-4803[1]

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