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An anatomical study of the insertion of the zygomaticus major muscle in humans focused on the muscle arrangement at the corner of the mouth.

Authors
 Kyoung-Sub Shim  ;  Kyung-Seok Hu  ;  Hyun-Ho Kwak  ;  Kwan-Hyun Youn  ;  Ki-S. Koh  ;  Christian Fontaine  ;  Hee-Jin Kim 
Citation
 PLASTIC AND RECONSTRUCTIVE SURGERY, Vol.121(2) : 466-474, 2008 
Journal Title
 PLASTIC AND RECONSTRUCTIVE SURGERY 
ISSN
 0032-1052 
Issue Date
2008
MeSH
Aged ; Cadaver ; Facial Muscles/anatomy & histology* ; Facial Muscles/surgery ; Female ; Humans ; Male ; Mouth/anatomy & histology* ; Reconstructive Surgical Procedures/methods ; Rejuvenation
Keywords
Aged ; Cadaver ; Facial Muscles/anatomy & histology* ; Facial Muscles/surgery ; Female ; Humans ; Male ; Mouth/anatomy & histology* ; Reconstructive Surgical Procedures/methods ; Rejuvenation
Abstract
BACKGROUND: The aim of this study was to clarify the arrangement of the zygomaticus major muscle by means of topographic examination, and to evaluate the anatomical variations in the insertion of the zygomaticus major at the perioral region. METHODS: After a detailed dissection in the modiolar region, the insertion area of the zygomaticus major was observed in 70 embalmed cadavers. RESULTS: At the perioral region of the dissected specimens, the anatomical aspects of the muscular arrangement and attachment of the zygomaticus major muscle were classified into four categories. In type I, the superficial muscle band of the zygomaticus major is blended and interlaced with the levator anguli oris, whereas the fibers of the deep muscle band blend into the buccinator, passing deeper to the levator anguli oris; this was the situation most commonly encountered (54.3 percent). It was found that the insertion of the zygomaticus major was divided into superficial and deep bands (types I and IV) [42 cases (60 percent)] and into three layers of superficial, middle, and deep fibers (type II) [17 cases (24.3 percent)]. The others were cases where the zygomaticus major was inserted deep into the levator anguli oris as a single muscle band (type III) [11 cases (15.7 percent)]. CONCLUSION: The arrangement and insertion patterns of the zygomaticus major in this study are expected to provide critical information for surgical planning for the procedure of facial reanimation surgery
Full Text
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00006534-200802000-00013&LSLINK=80&D=ovft
DOI
10.1097/01.prs.0000297652.29671.1a
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hee Jin(김희진) ORCID logo https://orcid.org/0000-0002-1139-6261
Hu, Kyung Seok(허경석) ORCID logo https://orcid.org/0000-0002-9048-3805
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/106945
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