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KMID : 0362720120500100616
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Journal of the Korean Dental Association
2012 Volume.50 No. 10 p.616 ~ p.619
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An anatomic study of the zygomaticus major and minor muscles
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Choi Da-Yae
Hu Kyung-Seok
Kim Hee-Jin
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Abstract
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The aim of this study was to clarify the arrangement of the zygomaticus major muscle, and to describe morphology of zygomaticus minor muscle. After a detailed dissection, the zygomaticus muscles were observed in 66 embalmed cadavers. It was found that the insertion of zygomaticus major was divided into superficial and deep bands(42/70, 60%). Zygomaticus minor was inserted not only upper lip also alar portion(5/54, 9.2%). The arrangement and insertion patterns of the zygomaticus muscles in this study are expected to provide critical information for understanding of smile pattern and treatment of fold.
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KEYWORD
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zygomaticus major muscle, zygomaticus minor muscle, facial expression, nasolabial fold
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