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Topography of the masseter muscle in relation to treatment with botulinum toxin type A.
MedLine Citation:
PMID:  20382049     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
OBJECTIVE: The objective of this study was to provide the safest and most efficient site for injection of botulinum toxin type A into the masseter muscle. STUDY DESIGN: This study was performed on 40 hemifaces from cadavers. The surface of the masseter was compartmentalized into areas I to VIII. Areas I, III, V, and VII were assigned to represent the upper 4 compartments from the posterior aspect of each muscle, and areas II, IV, VI, and VIII were assigned to represent the lower 4 compartments. RESULTS: The parotid gland usually covered compartments I and II, and the marginal mandibular branch of the facial nerve was located a mean of 7.4 mm above the inferior mandibular margin. The parotid duct was usually located above the reference line connecting the tragus and the cheilion. CONCLUSION: The center of compartment VI is the safest and most efficient injection site for botulinum toxin type A into the masseter muscle.
Authors:
Kyung-Seok Hu; Seong-Taek Kim; Mi-Sun Hur; Ju-Hyun Park; Wu-Chul Song; Ki-Seok Koh; Hee-Jin Kim
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-04-09
Journal Detail:
Title:  Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics     Volume:  110     ISSN:  1528-395X     ISO Abbreviation:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508562     Medline TA:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  167-71     Citation Subset:  D; IM    
Copyright Information:
Copyright 2010 Mosby, Inc. All rights reserved.
Affiliation:
Division in Anatomy and Developmental Biology, Department of Oral Biology, Yonsei University College of Dentistry, Seoul, Korea.
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