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Article: Initial and late treatment effects of headgear-Herbst appliance with mandibular step-by-step advancement

TitleInitial and late treatment effects of headgear-Herbst appliance with mandibular step-by-step advancement
Authors
Issue Date2002
PublisherMosby, Inc. The Journal's web site is located at http://www.elsevier.com/locate/ajodo
Citation
American Journal Of Orthodontics And Dentofacial Orthopedics, 2002, v. 122 n. 5, p. 477-485 How to Cite?
AbstractThe aim of this study was to investigate the effects of the headgear-Herbst appliance with mandibular step-by-step advancement followed by retention with the headgear activator. The sample comprised 22 consecutively treated patients (13.2 ± 1.5 years old) and 31 matched controls (12.6 ± 1.3 years old). Lateral cephalograms were obtained at the beginning of treatment, after 6 months (at completion of the initial phase), after 12 months of active treatment (at the end of the late phase), and after 18 months (at the end of retention). The results showed that the skeletal effects over 12 months of treatment were restrained maxillary growth, enhanced mandibular growth, and reduced increase in lower facial height. The restraint effect on the maxilla was significant in both the initial and late phases; the enhanced growth of the mandible was significant during the initial phase only; and the height of the lower face was affected during the late phase only. During retention with the headgear activator, the jaw base relationship was maintained, and the effect on the lower facial height was reinforced. A small relapse of the overjet and molar relationship was the result of dental changes only. During 18 months of active treatment and retention, the overjet correction was the result of 70% skeletal changes. The headgear-Herbst appliance is an effective orthopedic device, and the effect on the maxilla seems to increase with the length of treatment, but the pattern was reversed for the mandible. Copyright © 2002 by the American Association of Orthodontists.
Persistent Identifierhttp://hdl.handle.net/10722/66873
ISSN
2015 Impact Factor: 1.69
2015 SCImago Journal Rankings: 1.249
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHägg, Uen_HK
dc.contributor.authorDu, Xen_HK
dc.contributor.authorRabie, ABMen_HK
dc.date.accessioned2010-09-06T05:50:04Z-
dc.date.available2010-09-06T05:50:04Z-
dc.date.issued2002en_HK
dc.identifier.citationAmerican Journal Of Orthodontics And Dentofacial Orthopedics, 2002, v. 122 n. 5, p. 477-485en_HK
dc.identifier.issn0889-5406en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66873-
dc.description.abstractThe aim of this study was to investigate the effects of the headgear-Herbst appliance with mandibular step-by-step advancement followed by retention with the headgear activator. The sample comprised 22 consecutively treated patients (13.2 ± 1.5 years old) and 31 matched controls (12.6 ± 1.3 years old). Lateral cephalograms were obtained at the beginning of treatment, after 6 months (at completion of the initial phase), after 12 months of active treatment (at the end of the late phase), and after 18 months (at the end of retention). The results showed that the skeletal effects over 12 months of treatment were restrained maxillary growth, enhanced mandibular growth, and reduced increase in lower facial height. The restraint effect on the maxilla was significant in both the initial and late phases; the enhanced growth of the mandible was significant during the initial phase only; and the height of the lower face was affected during the late phase only. During retention with the headgear activator, the jaw base relationship was maintained, and the effect on the lower facial height was reinforced. A small relapse of the overjet and molar relationship was the result of dental changes only. During 18 months of active treatment and retention, the overjet correction was the result of 70% skeletal changes. The headgear-Herbst appliance is an effective orthopedic device, and the effect on the maxilla seems to increase with the length of treatment, but the pattern was reversed for the mandible. Copyright © 2002 by the American Association of Orthodontists.en_HK
dc.languageengen_HK
dc.publisherMosby, Inc. The Journal's web site is located at http://www.elsevier.com/locate/ajodoen_HK
dc.relation.ispartofAmerican Journal of Orthodontics and Dentofacial Orthopedicsen_HK
dc.rightsAmerican Journal of Orthodontics and Dentofacial Orthopedics. Copyright © Mosby, Inc.en_HK
dc.subject.meshAdolescenten_HK
dc.subject.meshCase-Control Studiesen_HK
dc.subject.meshCephalometryen_HK
dc.subject.meshChilden_HK
dc.subject.meshExtraoral Traction Appliancesen_HK
dc.subject.meshFemaleen_HK
dc.subject.meshFollow-Up Studiesen_HK
dc.subject.meshHumansen_HK
dc.subject.meshIncisor - pathologyen_HK
dc.subject.meshMaleen_HK
dc.subject.meshMalocclusion, Angle Class II - therapyen_HK
dc.subject.meshMandible - growth & development - pathologyen_HK
dc.subject.meshMaxilla - growth & development - pathologyen_HK
dc.subject.meshMolar - pathologyen_HK
dc.subject.meshOrthodontic Appliances, Functionalen_HK
dc.subject.meshOrthodontic Retainersen_HK
dc.subject.meshStatistics as Topicen_HK
dc.subject.meshTreatment Outcomeen_HK
dc.subject.meshVertical Dimensionen_HK
dc.titleInitial and late treatment effects of headgear-Herbst appliance with mandibular step-by-step advancementen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0889-5406&volume=122&issue=5&spage=477&epage=485&date=2002&atitle=Initial+and+late+treatment+effects+of+headgear-Herbst+appliance+with+mandibular+step-by-step+advancementen_HK
dc.identifier.emailHägg, U: euohagg@hkusua.hku.hken_HK
dc.identifier.emailRabie, ABM: rabie@hku.hken_HK
dc.identifier.authorityHägg, U=rp00020en_HK
dc.identifier.authorityRabie, ABM=rp00029en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1067/mod.2002.128218en_HK
dc.identifier.pmid12439475-
dc.identifier.scopuseid_2-s2.0-0036831393en_HK
dc.identifier.hkuros76134en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036831393&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume122en_HK
dc.identifier.issue5en_HK
dc.identifier.spage477en_HK
dc.identifier.epage485en_HK
dc.identifier.isiWOS:000179472300006-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridHägg, U=7006790279en_HK
dc.identifier.scopusauthoridDu, X=7402551294en_HK
dc.identifier.scopusauthoridRabie, ABM=7007172734en_HK

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