A cephalometric analysis of the antegonial notch in relation to the direction of mandibular growth

Masticatory muscle forces influence craniofacial morphology development. The antegonial notch (Notch) is a bony concavity on the inferior border of the mandible. Considering the Notch is located anteriorly to the insertion of the masseter muscle and varies among individuals, we hypothesised that the...

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Bibliographic Details
Published in:Scientific reports 2024-10, Vol.14 (1), p.23241-6, Article 23241
Main Authors: Manabe, Asuka, Fukino, Keiko, Kinoshita, Yuri, Kitagawa, Norio, Iwanaga, Joe, Ono, Takashi
Format: Article
Language:English
Subjects:
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Adolescent
Adult
Antegonial notch
Cephalometry - methods
Correlation coefficient
Craniofacial growth
Female
Humanities and Social Sciences
Humans
Male
Mandible
Mandible - anatomy & histology
Mandible - growth & development
Mandibular growth
Masseter muscle
Mastication
Masticatory muscle
Morphology
multidisciplinary
Muscles
Orthodontics
Retrospective Studies
Science
Science (multidisciplinary)
Young Adult
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Summary:Masticatory muscle forces influence craniofacial morphology development. The antegonial notch (Notch) is a bony concavity on the inferior border of the mandible. Considering the Notch is located anteriorly to the insertion of the masseter muscle and varies among individuals, we hypothesised that these muscles influence the formation of the Notch. Therefore, this study aimed to investigate the correlation between mandible morphology and Notch formation. Sixty Japanese patients who visited the Department of Orthodontics at our university hospital were retrospectively evaluated. Morphological and morphometric analyses of the Notch and related craniofacial parameters were conducted using lateral cephalograms taken at the patients’ initial visits. Standard values for the Notch area and depth were determined, and the morphology of the Notch and mandible was analysed using Spearman’s rank correlation coefficient ( p  
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-024-74014-2