Document Detail

Profile changes associated with maxillary incisor retraction in the postadolescent orthodontic patient.
MedLine Citation:
PMID:  9511483     Owner:  NLM     Status:  MEDLINE    
Maxillary incisor retraction and associated upper lip changes were studied in 30 male and 30 female postadolescent orthodontic patients to determine if a statistically significant correlation and ratio existed between maxillary incisor and lip retraction, dependent on thickness, strain, and length of the upper lip. This analysis attempted to eliminate the effects of growth and gender. Statistically significant correlations were found in both male and female patients who had thin, highly strained lips. Although a ratio for predictive purposes was determined for each of these groups, their absolute value is questionable because no apparent pattern exists between them. Furthermore, as lip thickness increased and lip strain decreased, correlation coefficients fell to nonsignificance, making it more difficult to predict upper lip change resulting from maxillary incisor retraction in these individuals.
R A Kokodynski; S D Marshall; W Ayer; N H Weintraub; D L Hoffman
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The International journal of adult orthodontics and orthognathic surgery     Volume:  12     ISSN:  0742-1931     ISO Abbreviation:  Int J Adult Orthodon Orthognath Surg     Publication Date:  1997  
Date Detail:
Created Date:  1998-07-14     Completed Date:  1998-07-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8610335     Medline TA:  Int J Adult Orthodon Orthognath Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  129-34     Citation Subset:  D    
Northwestern University, Dental School, Chicago, Illinois, USA.
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MeSH Terms
Cephalometry / statistics & numerical data
Face / anatomy & histology*
Lip / anatomy & histology
Orthodontics, Corrective* / statistics & numerical data
Random Allocation
Sex Characteristics

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