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Article: Mandibular growth during initial treatment with the Bass orthopaedic appliance in relation to age and growth periods

TitleMandibular growth during initial treatment with the Bass orthopaedic appliance in relation to age and growth periods
Authors
Issue Date1997
PublisherOxford University Press. The Journal's web site is located at http://ejo.oxfordjournals.org/
Citation
European Journal Of Orthodontics, 1997, v. 19 n. 1, p. 47-56 How to Cite?
AbstractThe aim of this study was to relate the initial orthopaedic effects of a Bass activator to age and growth periods at the time of therapy. The sample consisted of 54 boys with a severe Class II, division 1 malocclusion. The mean age at start of treatment was 11.4 years. Longitudinal records of standing height were used to assess the growth period during treatment. Three periods were established: pre-peak, peak and post-peak. The treatment period of each subject was assigned to one of these periods. Lateral cephalograms were available 6 months before treatment in 22 of the boys, and at the start of treatment and after 6 months in the whole sample. No significant growth changes were observed 6 months before treatment. During the initial 6 months of treatment a small restraining effect on the maxilla and a forward growth of the mandible was observed. A significant correlation between age and forward growth of the mandible during treatment was found in the pre-peak and peak groups. This indicates a great initial orthopaedic treatment effect in young boys in the pre-peak period and in boys with an early peak. In boys 10 years of age or older not having reached the peak period of growth, the treatment response was less pronounced.
Persistent Identifierhttp://hdl.handle.net/10722/48921
ISSN
2015 Impact Factor: 1.44
2015 SCImago Journal Rankings: 1.090
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorÖmblus, Jen_HK
dc.contributor.authorMalmgren, Oen_HK
dc.contributor.authorHägg, Uen_HK
dc.date.accessioned2008-06-12T06:29:44Z-
dc.date.available2008-06-12T06:29:44Z-
dc.date.issued1997en_HK
dc.identifier.citationEuropean Journal Of Orthodontics, 1997, v. 19 n. 1, p. 47-56en_HK
dc.identifier.issn0141-5387en_HK
dc.identifier.urihttp://hdl.handle.net/10722/48921-
dc.description.abstractThe aim of this study was to relate the initial orthopaedic effects of a Bass activator to age and growth periods at the time of therapy. The sample consisted of 54 boys with a severe Class II, division 1 malocclusion. The mean age at start of treatment was 11.4 years. Longitudinal records of standing height were used to assess the growth period during treatment. Three periods were established: pre-peak, peak and post-peak. The treatment period of each subject was assigned to one of these periods. Lateral cephalograms were available 6 months before treatment in 22 of the boys, and at the start of treatment and after 6 months in the whole sample. No significant growth changes were observed 6 months before treatment. During the initial 6 months of treatment a small restraining effect on the maxilla and a forward growth of the mandible was observed. A significant correlation between age and forward growth of the mandible during treatment was found in the pre-peak and peak groups. This indicates a great initial orthopaedic treatment effect in young boys in the pre-peak period and in boys with an early peak. In boys 10 years of age or older not having reached the peak period of growth, the treatment response was less pronounced.en_HK
dc.format.extent418 bytes-
dc.format.mimetypetext/html-
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.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subject.meshActivator Appliancesen_HK
dc.subject.meshAgingen_HK
dc.subject.meshGrowthen_HK
dc.subject.meshMalocclusion, Angle Class II - therapyen_HK
dc.subject.meshMandible - growth & developmenten_HK
dc.titleMandibular growth during initial treatment with the Bass orthopaedic appliance in relation to age and growth periodsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0141-5387&volume=19&issue=1&spage=47&epage=56&date=1997&atitle=Mandibular+growth+during+initial+treatment+with+the+Bass+orthopaedic+appliance+in+relation+to+age+and+growth+periodsen_HK
dc.identifier.emailHägg, U:euohagg@hkusua.hku.hken_HK
dc.identifier.authorityHägg, U=rp00020en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1093/ejo/19.1.47en_HK
dc.identifier.pmid9071045-
dc.identifier.scopuseid_2-s2.0-0031066265en_HK
dc.identifier.hkuros21842-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0031066265&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume19en_HK
dc.identifier.issue1en_HK
dc.identifier.spage47en_HK
dc.identifier.epage56en_HK
dc.identifier.isiWOS:A1997WL18600006-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridÖmblus, J=6602921943en_HK
dc.identifier.scopusauthoridMalmgren, O=6701778099en_HK
dc.identifier.scopusauthoridHägg, U=7006790279en_HK

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