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Effect of botulinum toxin type A injection on lower facial contouring evaluated using a three-dimensional laser scan.

Authors
 WOO HYUN SHIM  ;  SEUNG HYUN YOON  ;  JU HYUN PARK  ;  YOUNG-CHAN CHOI  ;  SEONG TAEK KIM 
Citation
 DERMATOLOGIC SURGERY, Vol.36(Suppl 4) : 2161-2166, 2010 
Journal Title
 DERMATOLOGIC SURGERY 
ISSN
 1076-0512 
Issue Date
2010
MeSH
Adult ; Botulinum Toxins, Type A/administration & dosage* ; Face ; Female ; Humans ; Hypertrophy ; Imaging, Three-Dimensional ; Injections, Intramuscular ; Lasers ; Male ; Masseter Muscle/drug effects* ; Masseter Muscle/pathology ; Neuromuscular Agents/administration & dosage* ; Young Adult
Abstract
OBJECTIVE: To use three-dimensional (3D) laser scanning to elucidate changes in the external facial contour before and after botulinum toxin type A (BoNT-A) injections. METHODS & MATERIALS: BoNT-A was injected into 15 volunteers as a treatment for lower facial contouring. A total of 25 U of BoNT-A was injected into each side of the masseter muscle bilaterally. On each side, it was injected into two points at the center of the lower third of the masseter muscle separated by 1 cm. The clinical effects of BoNT-A were evaluated by performing 3D laser scans before and 4, 8, 12, and 24 weeks after the injection. RESULTS: The mean values of the volume and widths of the most prominent area at each time point differed significantly before and 4, 8, 12, and 24 weeks after the injection. CONCLUSIONS: The volumes and widths of the most prominent areas of the lower face (masseter muscle) were significantly lower 4, 8, 12, and 24 weeks after injecting BoNT-A than before the injection. The mean values of the volume and widths of the most prominent area were 2,176.93 mm(3) and 2.39 mm less, respectively, 24 weeks after the injection than before
Full Text
http://onlinelibrary.wiley.com/doi/10.1111/j.1524-4725.2010.01704.x/abstract
DOI
10.1111/j.1524-4725.2010.01704.x
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orofacial Pain and Oral Medicine (구강내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Seong Taek(김성택)
Park, Ju Hyun(박주현)
Shim, Woo Hyun(심우현)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/103156
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