| Long-term occlusal and soft-tissue profile outcomes after treatment of Class II Division 1 malocclusion with fixed appliances. | |
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MedLine Citation:
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PMID: 21392692 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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INTRODUCTION: Our objective was to determine which factors were predictive of good long-term outcomes after fixed appliance treatment of Class II Division 1 malocclusion. METHODS: Two hundred seven patients with Class II Division 1 malocclusion were examined in early adulthood at a mean of 4.6 years after treatment with fixed appliances. The peer assessment rating index was used to evaluate dental alignment and occlusal relationships. The soft-tissue profile was assessed with the Holdaway angle. RESULTS: Logistic regression identified 3 pretreatment variables that were predictive of a good facial profile (Holdaway angle) at recall: the lower lip to E-plane distance (P <0.001; smaller distance behind the E-plane means a better outcome), ANB angle (P = 0.001; smaller ANB means a better outcome), and extraction pattern (P = 0.026). Linear regression analysis showed that 2 pretreatment variables were predictive of a favorable PAR score at recall: SNB angle (P = 0.001; larger SNB means a better outcome) and extraction pattern (P = 0.034). CONCLUSIONS: Three pretreatment cephalometric measures (lower lip to E-plane distance, ANB angle, and SNB angle) were predictive of the outcome in the treatment of Class II Division 1 malocclusion. The extraction pattern was also found to be a predictor of outcome. |
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Authors:
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Niall J P McGuinness; Donald J Burden; Orlagh T Hunt; Chris D Johnston; Mike Stevenson |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics Volume: 139 ISSN: 1097-6752 ISO Abbreviation: Am J Orthod Dentofacial Orthop Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-03-11 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8610224 Medline TA: Am J Orthod Dentofacial Orthop Country: United States |
Other Details:
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Languages: eng Pagination: 362-8 Citation Subset: D; IM |
Copyright Information:
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Copyright © 2011. Published by Mosby, Inc. |
Affiliation:
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Consultant orthodontist, Lothian University Hospitals NHS Trust, Department of Orthodontics, Edinburgh University Postgraduate Dental Institute, Edinburgh, Scotland. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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