Document Detail

Craniofacial morphology of adolescent mandibular prognathism.
MedLine Citation:
PMID:  8297052     Owner:  NLM     Status:  MEDLINE    
Morphological features of the craniofacial complex during orthopedic chin cup therapy were investigated in growing patients with mandibular prognathism. Lateral cephalograms of 30 subjects (15 boys and 15 girls, mean age: 9.04 +/- 1.29 years), taken at four different stages during treatment, were analyzed for 14 measurements. These measured values were standardized by use of Japanese controls and then evaluated to investigate longitudinal changes in the craniofacial morphology at the four different stages. Further, factor analysis was used to compare factors describing the craniofacial morphology for the initial and final stages. Dimensional changes of the mandible were not easily produced even if orthopedic treatment was conducted, whereas the maxilla exhibited a tendency to approach the normal range of the controls. Positional changes of the complex, the backward and downward repositioning of the mandible in particular, played an important role in altering a profile from prognathic before treatment to orthognathic at the end of treatment. Craniofacial morphology was similar pretreatment and posttreatment, although the orthognathic factor became more prominent when associated with positional changes of the mandible at the end of treatment.
Y C Lu; K Tanne; Y Hirano; M Sakuda
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Angle orthodontist     Volume:  63     ISSN:  0003-3219     ISO Abbreviation:  Angle Orthod     Publication Date:  1993  
Date Detail:
Created Date:  1994-02-28     Completed Date:  1994-02-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0370550     Medline TA:  Angle Orthod     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  277-82     Citation Subset:  D; IM    
Department of Orthodontics, Hiroshima University, Japan.
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MeSH Terms
Extraoral Traction Appliances*
Facial Bones / anatomy & histology*
Factor Analysis, Statistical
Follow-Up Studies
Malocclusion, Angle Class III / therapy
Maxillofacial Development
Prognathism / pathology,  physiopathology,  therapy*
Skull / anatomy & histology*

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