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Article: Comparison of the headgear activator and Herbst appliance - Effects and post-treatment changes

TitleComparison of the headgear activator and Herbst appliance - Effects and post-treatment changes
Authors
Issue Date2006
PublisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/
Citation
European Journal Of Orthodontics, 2006, v. 28 n. 6, p. 594-604 How to Cite?
AbstractThe aim of this study was to evaluate the effects of the headgear activator (HGA) and Herbst appliance during active treatment and retention and at follow-up in children with a skeletal Class II malocclusion. The two groups comprised 16 consecutive male patients (mean age 11.6 ± 1.42 years) treated with a HGA and 16 male patients (mean age 12.6 ± 1.13 years) treated with a Herbst appliance and Andresen activator (HAA) sampled from a larger pool using similar selection criteria. Growth data were obtained for the two groups. Lateral cephalograms taken at the start, after 6 months of treatment, after 12 months of active treatment or 6 months of retention, and at the 24-month follow-up were analysed. The total changes over the whole observation period (T0-T3) did not differ significantly between the groups; there was, however, a statistically significant increase in jaw prognathism (P < 0.05) and improvement of the molar relationship (P < 0.05) in the HAA group as compared with the HGA group. During the initial treatment phase (T0-T1), the overall treatment effects were statistically more pronounced in the HAA group than in the HGA group. Despite significant differences in treatment effects and changes between the two devices, there were no significant overall changes at follow-up except for the prognathism, i.e. maxillary prognathism decreased with treatment with the HGA while mandibulars prognathism continued to increase with HAA treatment.
Persistent Identifierhttp://hdl.handle.net/10722/66925
ISSN
2015 Impact Factor: 1.44
2015 SCImago Journal Rankings: 1.090
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorPhan, KLDen_HK
dc.contributor.authorBendeus, Men_HK
dc.contributor.authorHägg, Uen_HK
dc.contributor.authorHansen, Ken_HK
dc.contributor.authorRabie, ABMen_HK
dc.date.accessioned2010-09-06T05:50:30Z-
dc.date.available2010-09-06T05:50:30Z-
dc.date.issued2006en_HK
dc.identifier.citationEuropean Journal Of Orthodontics, 2006, v. 28 n. 6, p. 594-604en_HK
dc.identifier.issn0141-5387en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66925-
dc.description.abstractThe aim of this study was to evaluate the effects of the headgear activator (HGA) and Herbst appliance during active treatment and retention and at follow-up in children with a skeletal Class II malocclusion. The two groups comprised 16 consecutive male patients (mean age 11.6 ± 1.42 years) treated with a HGA and 16 male patients (mean age 12.6 ± 1.13 years) treated with a Herbst appliance and Andresen activator (HAA) sampled from a larger pool using similar selection criteria. Growth data were obtained for the two groups. Lateral cephalograms taken at the start, after 6 months of treatment, after 12 months of active treatment or 6 months of retention, and at the 24-month follow-up were analysed. The total changes over the whole observation period (T0-T3) did not differ significantly between the groups; there was, however, a statistically significant increase in jaw prognathism (P < 0.05) and improvement of the molar relationship (P < 0.05) in the HAA group as compared with the HGA group. During the initial treatment phase (T0-T1), the overall treatment effects were statistically more pronounced in the HAA group than in the HGA group. Despite significant differences in treatment effects and changes between the two devices, there were no significant overall changes at follow-up except for the prognathism, i.e. maxillary prognathism decreased with treatment with the HGA while mandibulars prognathism continued to increase with HAA treatment.en_HK
dc.languageengen_HK
dc.publisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/en_HK
dc.relation.ispartofEuropean Journal of Orthodonticsen_HK
dc.rightsEuropean Journal of Orthodontics. Copyright © Oxford University Press.en_HK
dc.subject.meshCephalometry - statistics & numerical dataen_HK
dc.subject.meshChilden_HK
dc.subject.meshExtraoral Traction Appliancesen_HK
dc.subject.meshFollow-Up Studiesen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMaleen_HK
dc.subject.meshMalocclusion, Angle Class II - therapyen_HK
dc.subject.meshMaxillofacial Developmenten_HK
dc.subject.meshOrthodontic Appliances, Functionalen_HK
dc.subject.meshOrthodontics, Interceptive - instrumentationen_HK
dc.subject.meshPrognathism - prevention & controlen_HK
dc.subject.meshProspective Studiesen_HK
dc.subject.meshTreatment Outcomeen_HK
dc.titleComparison of the headgear activator and Herbst appliance - Effects and post-treatment changesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0141-5387&volume=28 No1&spage=594&epage=604&date=2006&atitle=Comparison+of+the+headgear+activator+and+Herbst+appliance+-+effects+and+post-treatment+changesen_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_OA_fulltext-
dc.identifier.doi10.1093/ejo/cjl052en_HK
dc.identifier.pmid17142260en_HK
dc.identifier.scopuseid_2-s2.0-33845395265en_HK
dc.identifier.hkuros125623en_HK
dc.identifier.hkuros125785-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33845395265&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume28en_HK
dc.identifier.issue6en_HK
dc.identifier.spage594en_HK
dc.identifier.epage604en_HK
dc.identifier.isiWOS:000242715600014-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridPhan, KLD=15136795600en_HK
dc.identifier.scopusauthoridBendeus, M=6506522941en_HK
dc.identifier.scopusauthoridHägg, U=7006790279en_HK
dc.identifier.scopusauthoridHansen, K=7401918543en_HK
dc.identifier.scopusauthoridRabie, ABM=7007172734en_HK
dc.identifier.citeulike977777-

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