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Article: Growth and treatment changes in patients treated with a headgear-activator appliance
Title | Growth and treatment changes in patients treated with a headgear-activator appliance |
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Authors | |
Issue Date | 2002 |
Publisher | Mosby, 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. 121 n. 4, p. 376-384 How to Cite? |
Abstract | The aim of this study was to investigate growth and treatment changes in patients with Class II Division 1 malocclusion treated with a combined headgear-activator appliance. The sample consisted of 20 consecutive male patients treated with headgear-activator. Their compliance was checked after 2 months of treatment, and 3 patients dropped out. Lateral cephalograms, obtained 6 months before treatment, at the start of treatment, after 6 and 12 months of treatment, and 24 months after treatment, were analyzed by the method of Pancherz. The results disclosed that during growth, on average, overjet, molar relationship, and jaw-base relationship improved, and the mandibular incisors became retruded; the changes were statistically significant over a 2-year period. There was no significant change in the overbite. During the 12 months of treatment, there was no maxillary forward growth, and the jaw relationship improved (P < .001) because of forward growth of the mandible (P < .001). The molar relationship and the overbite improved (P < .001). Significant treatment effects included reduction in overjet (P < .001) and overbite (P < .01), and improvement of jaw-base (P < .05) and molar (P < .001) relationships. There was significant restraint of maxillary forward growth (P < .05). The eruption of the maxillary incisors and molars was restrained (P < .05). The average basic growth pattern in Class II Division 1 malocclusion resulted in small favorable changes in overjet, molar relationship, and jaw-base relationship. The main effect of the headgear-activator appliance was a favorable dental change, limited to restraint of maxillary forward growth but not affecting the vertical dimension. Copyright © 2002 by the American Association of Orthodontists. |
Persistent Identifier | http://hdl.handle.net/10722/66900 |
ISSN | 2023 Impact Factor: 2.7 2023 SCImago Journal Rankings: 1.283 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bendeus, M | en_HK |
dc.contributor.author | Hägg, U | en_HK |
dc.contributor.author | Rabie, B | en_HK |
dc.date.accessioned | 2010-09-06T05:50:17Z | - |
dc.date.available | 2010-09-06T05:50:17Z | - |
dc.date.issued | 2002 | en_HK |
dc.identifier.citation | American Journal Of Orthodontics And Dentofacial Orthopedics, 2002, v. 121 n. 4, p. 376-384 | en_HK |
dc.identifier.issn | 0889-5406 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/66900 | - |
dc.description.abstract | The aim of this study was to investigate growth and treatment changes in patients with Class II Division 1 malocclusion treated with a combined headgear-activator appliance. The sample consisted of 20 consecutive male patients treated with headgear-activator. Their compliance was checked after 2 months of treatment, and 3 patients dropped out. Lateral cephalograms, obtained 6 months before treatment, at the start of treatment, after 6 and 12 months of treatment, and 24 months after treatment, were analyzed by the method of Pancherz. The results disclosed that during growth, on average, overjet, molar relationship, and jaw-base relationship improved, and the mandibular incisors became retruded; the changes were statistically significant over a 2-year period. There was no significant change in the overbite. During the 12 months of treatment, there was no maxillary forward growth, and the jaw relationship improved (P < .001) because of forward growth of the mandible (P < .001). The molar relationship and the overbite improved (P < .001). Significant treatment effects included reduction in overjet (P < .001) and overbite (P < .01), and improvement of jaw-base (P < .05) and molar (P < .001) relationships. There was significant restraint of maxillary forward growth (P < .05). The eruption of the maxillary incisors and molars was restrained (P < .05). The average basic growth pattern in Class II Division 1 malocclusion resulted in small favorable changes in overjet, molar relationship, and jaw-base relationship. The main effect of the headgear-activator appliance was a favorable dental change, limited to restraint of maxillary forward growth but not affecting the vertical dimension. Copyright © 2002 by the American Association of Orthodontists. | en_HK |
dc.language | eng | en_HK |
dc.publisher | Mosby, Inc. The Journal's web site is located at http://www.elsevier.com/locate/ajodo | en_HK |
dc.relation.ispartof | American Journal of Orthodontics and Dentofacial Orthopedics | en_HK |
dc.rights | American Journal of Orthodontics and Dentofacial Orthopedics. Copyright © Mosby, Inc. | en_HK |
dc.title | Growth and treatment changes in patients treated with a headgear-activator appliance | en_HK |
dc.type | Article | en_HK |
dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0889-5406&volume=121&issue=4&spage=376&epage=384&date=2002&atitle=Growth+and+treatment+changes+in+patients+treated+with+a+headgear-activator+appliance | en_HK |
dc.identifier.email | Hägg, U: euohagg@hkusua.hku.hk | en_HK |
dc.identifier.email | Rabie, B: rabie@hku.hk | en_HK |
dc.identifier.authority | Hägg, U=rp00020 | en_HK |
dc.identifier.authority | Rabie, B=rp00029 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1067/mod.2002.122177 | en_HK |
dc.identifier.scopus | eid_2-s2.0-0036550452 | en_HK |
dc.identifier.hkuros | 66567 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0036550452&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 121 | en_HK |
dc.identifier.issue | 4 | en_HK |
dc.identifier.spage | 376 | en_HK |
dc.identifier.epage | 384 | en_HK |
dc.identifier.isi | WOS:000175598100012 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Bendeus, M=6506522941 | en_HK |
dc.identifier.scopusauthorid | Hägg, U=7006790279 | en_HK |
dc.identifier.scopusauthorid | Rabie, B=7007172734 | en_HK |
dc.identifier.issnl | 0889-5406 | - |