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Hard and Soft Tissue Facial Landmarks for Mandibular Angle Reduction: A Clinical Study

Authors :
Fei-Fan Tseng
Yu-Hsuan Li
Yuan-Wu Chen
Source :
Clinics and Practice, Vol 14, Iss 5, Pp 1707-1715 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

Background: Square faces, which are influenced by genetic factors and structural features, are considered undesirable among the Asian population. Surgical interventions, such as mandibular angle reduction, aim to alter these characteristics, though complications may arise. We aimed to investigate the morphology of the mandibular angle and masseter muscle thickness using computed tomography (CT) and to analyze hard and soft tissue correlations to enhance surgical outcomes for patients with square faces. Methods: This retrospective clinical study included 100 Taiwanese patients aged 18–50 years. CT was used to analyze key clinical parameters, including bilateral mandibular width, mandibular divergence angle, ramus height, distance from the mandibular angle to the inferior alveolar nerve (IAN), and the thickness of the masseter muscle. Results: Significant correlations were noted between the patients’ physical height and weight, mandibular width, ramus height, masseter thickness, and distance from the angle to the IAN. Males exhibited a significantly longer and thicker ramus height (66.48 ± 4.28 mm), greater masseter thickness (15.46 ± 2.35 mm), and greater safety range for mandibular angle reduction surgery (18.35 ± 3.19 mm) (p < 0.00008). Significant correlations were observed among all parameters, except between mandibular width and gonial angle and the distance from the angle to the IAN and between mandibular divergence and masseter muscle thickness (p > 0.1). Conclusions: Our study highlighted the complex interplay among factors that contribute to square facial morphology. Careful preoperative assessments and customized surgical planning are essential for addressing this multifaceted clinical challenge.

Details

Language :
English
ISSN :
20397283
Volume :
14
Issue :
5
Database :
Directory of Open Access Journals
Journal :
Clinics and Practice
Publication Type :
Academic Journal
Accession number :
edsdoj.b1faea1445369b407bba1466fe66
Document Type :
article
Full Text :
https://doi.org/10.3390/clinpract14050136