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Midface Hypoplasia and Cranial Base Morphology in Syndromic Craniosynostosis: A Comparative Analysis Study Using a Predictive Regression Model
Published on: November 4, 2025
A cross-sectional study on the relationship between craniofacial morphology and the coronoid process
Takahiro Torisu1, Kazuhiro Yamada, Tadao Fukui
1Division of Orthodontics, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan. toritaka@dent.niigata-u.ac.jp
European Journal of Orthodontics
|July 23, 2009
Summary
The coronoid process
Area of Science:
- Orthodontics and craniofacial development.
Background:
- The connection between craniofacial structure and temporal muscle activity is not fully understood.
- The coronoid process is a key attachment site for the temporalis muscle.
Purpose of the Study:
- To investigate the relationship between coronoid process morphology and overall craniofacial form.
- To explore correlations between specific coronoid process measurements and cephalometric variables.
Main Methods:
- Lateral cephalograms from 60 female subjects (mean age 9.6 years) without mandibular deviation were analyzed.
- Stepwise regression analysis was employed to identify significant correlations.
Main Results:
- Anterior coronoid marginal depth showed negative correlations with gonial angle, SNA, and overjet.
- Coronoid angle correlated negatively with sellar lengths to coronoid landmarks and posterior ramus.
- Coronoid length and width demonstrated positive correlations with coronoid angle, anterior marginal depth, and overbite.
Conclusions:
- Coronoid process morphology is intricately linked to mandibular and maxillary positioning.
- Craniofacial and dental relationships, particularly overjet and overbite, are associated with coronoid process dimensions.
- These findings suggest a potential relationship between coronoid process morphology and temporalis muscle function.
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