Document Detail

Long-term occlusal and soft-tissue profile outcomes after treatment of Class II Division 1 malocclusion with fixed appliances.
MedLine Citation:
PMID:  21392692     Owner:  NLM     Status:  In-Data-Review    
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.
Niall J P McGuinness; Donald J Burden; Orlagh T Hunt; Chris D Johnston; Mike Stevenson
Publication Detail:
Type:  Journal Article    
Journal Detail:
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:
Created Date:  2011-03-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8610224     Medline TA:  Am J Orthod Dentofacial Orthop     Country:  United States    
Other Details:
Languages:  eng     Pagination:  362-8     Citation Subset:  D; IM    
Copyright Information:
Copyright © 2011. Published by Mosby, Inc.
Consultant orthodontist, Lothian University Hospitals NHS Trust, Department of Orthodontics, Edinburgh University Postgraduate Dental Institute, Edinburgh, Scotland.
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