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Novel anatomical guidelines for botulinum neurotoxin injection in the mentalis muscle: a review

Authors
 Kyu-Ho Yi  ;  Ji-Hyun Lee  ;  Hye-Won Hu  ;  Hyun-Jun Park  ;  Hyungkyu Bae  ;  Kangwoo Lee  ;  Hee-Jin Kim 
Citation
 Anatomy and Cell Biology, Vol.56(3) : 293-298, 2023-09 
Journal Title
Anatomy and Cell Biology
ISSN
 2093-3665 
Issue Date
2023-09
Keywords
Botulinum neurotoxin ; Cobblestone chin ; Facial wrinkle ; Injection point ; Mentalis muscle
Abstract
The mentalis muscle is a paired muscle originating from the alveolar bone of the mandible. This muscle is the main target muscle for botulinum neurotoxin (BoNT) injection therapy, which aims to treat cobblestone chin caused by mentalis hyperactivity. However, a lack of knowledge on the anatomy of the mentalis muscle and the properties of BoNT can lead to side effects, such as mouth closure insufficiency and smile asymmetry due to ptosis of the lower lip after BoNT injection procedures. Therefore, we have reviewed the anatomical properties associated with BoNT injection into the mentalis muscle. An up-to-date understanding of the localization of the BoNT injection point according to mandibular anatomy leads to better injection localization into the mentalis muscle. Optimal injection sites have been provided for the mentalis muscle and a proper injection technique has been described. We have suggested optimal injection sites based on the external anatomical landmarks of the mandible. The aim of these guidelines is to maximize the effects of BoNT therapy by minimizing the deleterious effects, which can be very useful in clinical settings.
Files in This Item:
T202307403.pdf Download
DOI
10.5115/acb.22.266
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
Lee, Kang Woo(이강우)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/197743
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