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- Publisher Website: 10.1016/S0889-5406(00)70178-8
- Scopus: eid_2-s2.0-0034197973
- PMID: 10842112
- WOS: WOS:000087628600009
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Article: Treatment effects of simple fixed appliance and reverse headgear in correction of anterior crossbites.
Title | Treatment effects of simple fixed appliance and reverse headgear in correction of anterior crossbites. |
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Authors | |
Issue Date | 2000 |
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 : Official Publication Of The American Association Of Orthodontists, Its Constituent Societies, And The American Board Of Orthodontics, 2000, v. 117 n. 6, p. 691-699 How to Cite? |
Abstract | The aim of this study was to compare the skeletal and dental changes contributing to the correction of Class III malocclusion using a 2 x 4 appliance and reverse headgear in the mixed dentition. Seventeen consecutive patients (mean age, 9.7 years) with pseudo-Class III malocclusions and an anterior functional shift and straight or concave facial profile were treated with a simple fixed appliance. Another 20 consecutive patients (mean age, 8.5 years) with Class III incisor relationship and straight or concave facial profiles, were treated with reverse headgear. Lateral cephalometric films taken at the beginning of treatment, the end of the treatment, and 1 year after the active treatment, were analyzed with the modified Pancherz analysis. After active treatment, the overjet correction, 5.2 mm and 6.5 mm on average, respectively, were achieved using the 2 x 4 and reverse headgear. The overjet correction by the 2 x 4 appliance was due to dental changes only. In the reverse headgear group, 60% of the overjet correction was due to dental changes and 40% due to skeletal changes. During the 12 months follow-up period, the overjet was unchanged in the 2 x 4 group (1.6 mm) and decreased in the reverse headgear group, the difference being statistically significant (P <.05). The change of jaw relationship was similar between the 2 x 4 and reverse headgear groups. During the follow-up period, a decrease in overjet in the reverse headgear group was mainly due to forward growth of the mandible and proclination of lower incisors. The overjet in the 2 x 4 group was unchanged due to dental compensation (1.6 mm). To conclude there was a similar amount of overjet correction in the 2 x 4 and reverse headgear groups. Overjet correction by the simple fixed appliance was produced by dental changes whereas in the reverse headgear group, it was produced by both dental and skeletal changes. |
Persistent Identifier | http://hdl.handle.net/10722/154106 |
ISSN | 2023 Impact Factor: 2.7 2023 SCImago Journal Rankings: 1.283 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Gu, Y | en_US |
dc.contributor.author | Rabie, AB | en_US |
dc.contributor.author | Hagg, U | en_US |
dc.date.accessioned | 2012-08-08T08:23:17Z | - |
dc.date.available | 2012-08-08T08:23:17Z | - |
dc.date.issued | 2000 | en_US |
dc.identifier.citation | American Journal Of Orthodontics And Dentofacial Orthopedics : Official Publication Of The American Association Of Orthodontists, Its Constituent Societies, And The American Board Of Orthodontics, 2000, v. 117 n. 6, p. 691-699 | en_US |
dc.identifier.issn | 0889-5406 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/154106 | - |
dc.description.abstract | The aim of this study was to compare the skeletal and dental changes contributing to the correction of Class III malocclusion using a 2 x 4 appliance and reverse headgear in the mixed dentition. Seventeen consecutive patients (mean age, 9.7 years) with pseudo-Class III malocclusions and an anterior functional shift and straight or concave facial profile were treated with a simple fixed appliance. Another 20 consecutive patients (mean age, 8.5 years) with Class III incisor relationship and straight or concave facial profiles, were treated with reverse headgear. Lateral cephalometric films taken at the beginning of treatment, the end of the treatment, and 1 year after the active treatment, were analyzed with the modified Pancherz analysis. After active treatment, the overjet correction, 5.2 mm and 6.5 mm on average, respectively, were achieved using the 2 x 4 and reverse headgear. The overjet correction by the 2 x 4 appliance was due to dental changes only. In the reverse headgear group, 60% of the overjet correction was due to dental changes and 40% due to skeletal changes. During the 12 months follow-up period, the overjet was unchanged in the 2 x 4 group (1.6 mm) and decreased in the reverse headgear group, the difference being statistically significant (P <.05). The change of jaw relationship was similar between the 2 x 4 and reverse headgear groups. During the follow-up period, a decrease in overjet in the reverse headgear group was mainly due to forward growth of the mandible and proclination of lower incisors. The overjet in the 2 x 4 group was unchanged due to dental compensation (1.6 mm). To conclude there was a similar amount of overjet correction in the 2 x 4 and reverse headgear groups. Overjet correction by the simple fixed appliance was produced by dental changes whereas in the reverse headgear group, it was produced by both dental and skeletal changes. | en_US |
dc.language | eng | en_US |
dc.publisher | Mosby, Inc. The Journal's web site is located at http://www.elsevier.com/locate/ajodo | en_US |
dc.relation.ispartof | American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics | en_US |
dc.rights | American Journal of Orthodontics and Dentofacial Orthopedics. Copyright © Mosby, Inc. | - |
dc.subject.mesh | Cephalometry | en_US |
dc.subject.mesh | Child | en_US |
dc.subject.mesh | Dentition, Mixed | en_US |
dc.subject.mesh | Extraoral Traction Appliances | en_US |
dc.subject.mesh | Facial Bones - Pathology | en_US |
dc.subject.mesh | Female | en_US |
dc.subject.mesh | Follow-Up Studies | en_US |
dc.subject.mesh | Humans | en_US |
dc.subject.mesh | Incisor - Pathology | en_US |
dc.subject.mesh | Male | en_US |
dc.subject.mesh | Malocclusion, Angle Class Iii - Pathology - Therapy | en_US |
dc.subject.mesh | Mandible - Growth & Development - Pathology | en_US |
dc.subject.mesh | Maxilla - Pathology | en_US |
dc.subject.mesh | Orthodontic Appliances | en_US |
dc.subject.mesh | Recurrence | en_US |
dc.subject.mesh | Statistics As Topic | en_US |
dc.subject.mesh | Tooth Movement - Instrumentation | en_US |
dc.subject.mesh | Treatment Outcome | en_US |
dc.title | Treatment effects of simple fixed appliance and reverse headgear in correction of anterior crossbites. | en_US |
dc.type | Article | en_US |
dc.identifier.email | Rabie, AB:rabie@hku.hk | en_US |
dc.identifier.email | Hagg, U:euohagg@hkusua.hku.hk | en_US |
dc.identifier.authority | Rabie, AB=rp00029 | en_US |
dc.identifier.authority | Hagg, U=rp00020 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1016/S0889-5406(00)70178-8 | - |
dc.identifier.pmid | 10842112 | - |
dc.identifier.scopus | eid_2-s2.0-0034197973 | en_US |
dc.identifier.hkuros | 49448 | - |
dc.identifier.volume | 117 | en_US |
dc.identifier.issue | 6 | en_US |
dc.identifier.spage | 691 | en_US |
dc.identifier.epage | 699 | en_US |
dc.identifier.isi | WOS:000087628600009 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Gu, Y=7403046201 | en_US |
dc.identifier.scopusauthorid | Rabie, AB=7007172734 | en_US |
dc.identifier.scopusauthorid | Hagg, U=7006790279 | en_US |
dc.identifier.issnl | 0889-5406 | - |