Document Detail

Asymmetry of the lips of orthognathic surgery patients.
MedLine Citation:
PMID:  19815159     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: The purpose of this study was to examine asymmetry of the lips in patients with jaw deformity and facial asymmetry. METHODS: Pretreatment and posttreatment frontal facial photographs of 17 patients who had mandibular prognathism with facial asymmetry were analyzed. Linear and angular measurements were made on the photographs to assess the asymmetry of the lips. The upper and lower vermilion borders of the lips were divided into quadrants according to the y-axis, and each was measured. In addition, skeletal deviation (position of menton) was determined from the frontal cephalograms. RESULTS: The pretreatment linear and angular measurements showed asymmetry of the lips, but this significantly improved after treatment, and the lip form was almost symmetrical. The areas of vermilion border in the upper and lower lips became almost even during treatment. The ratio of the areas on the 2 sides was nearly 1.00. There was little correlation between the horizontal skeletal changes of menton and lip form. CONCLUSIONS: Asymmetry of the lips caused by deviation of the mandible can be almost completely corrected by orthognathic treatment.
Yoko Yamashita; Yoshiki Nakamura; Tatsuo Shimada; Yoshiaki Nomura; Ayao Hirashita
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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:  136     ISSN:  1097-6752     ISO Abbreviation:  Am J Orthod Dentofacial Orthop     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-10-09     Completed Date:  2009-10-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8610224     Medline TA:  Am J Orthod Dentofacial Orthop     Country:  United States    
Other Details:
Languages:  eng     Pagination:  559-63     Citation Subset:  D; IM    
Department of Orthodontics, School of Dental Medicine, Tsurumi University, Yokohama, Japan.
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MeSH Terms
Cephalometry / methods
Chin / pathology
Esthetics, Dental
Eye / pathology
Facial Asymmetry / pathology*,  surgery
Image Processing, Computer-Assisted / methods
Lip / pathology*
Mandible / pathology,  surgery
Nose / pathology
Photography / methods
Prognathism / pathology*,  surgery
Young Adult

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