Research Article

Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study

Volume: 52 Number: 3 December 29, 2025

Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study

Abstract

Purpose: This study aimed to compare the ultrasonographic (USG) characteristics of masseter muscle thickness and internal structure among female bruxism patients from two different nationalities. Materials and Methods: A total of 60 female patients with bruxism (30 Turkish and 30 Syrian), aged between 18 and 25, were included in the study. Measurements were taken with USG on both sides of each patient, both at rest and at maximum contraction, based on the distances from the center of the distance between the zygomatic arch and the gonial angle, parallel to the occlusal plane, and from the center of the mediolateral distance of the ramus, perpendicular to the ramus. The internal structure of the masseter muscle was classified according to the visibility of echogenic bands. Gonial and antegonial angles were measured on panoramic radiographs (PR). Results: A total of 60 female patients (mean age 22.2 ± 1.21 years) were evaluated. In the measurement of the masseter muscle at relaxation, it was determined that there was no statistically significant difference between the right and left (p=0.919) and between nationalities (p=0.465). In the measurement of the masseter muscle at clenching, it was determined that there was no statistically significant difference between the right and left (p=0.745) and between nationalities (p=0.235). When the distribution of the internal structure of the masseter muscle was compared on the right and left sides separately for both nationalities, no significant difference was found (p=0.215 and p=0.310, respectively). In the gonial angle measurement in PR, there was no statistically significant difference between the patients on the right and left sides (p=0.898) and between nationalities (p=0.101). In the antegonial angle measurement in radiographs, there was no statistically significant difference between the patients on the right and left sides (p=0.714) and between nationalities (p=0.235). Conclusions: USG provides a radiation-free modality for evaluating changes in the masseter muscle. However, variations in masseter muscle thickness, internal structure, and mandibular angles between nationalities were not statistically significant.

Keywords

Ethical Statement

This study was approved by the Local Ethics Committee of the Hatay Mustafa Kemal University (Date:18.12.2024, Decision no:08). The datasets used and analyzed during the current study are available from the corresponding author on reasonable request.

References

  1. Takeuchi T, Arima T, Ernberg M, Yamaguchi T, Ohata N, Svensson P. Symptoms and physiological responses to prolonged, repeated, low-level tooth clenching in humans. Headache. 2015;55(3):381–394. doi:10.1111/head.12528.
  2. Manfredini D, Poggio CE, Lobbezoo F. Is bruxism a risk factor for dental implants? A systematic review of the literature. Clin Implant Dent Relat Res. 2014;16(3):460–469. doi:10.1111/cid.12015.
  3. Flueraşu MI, Bocşan IC, Tîg IA, Iacob SM, Popa D, Buduru S. The epidemiology of bruxism in relation to psychological factors. Int J Environ Res Public Health. 2022;19(2). doi:10.3390/ijerph19020691.
  4. Oliveira JHP, Dourado Filho MG, Lima NS, Silva HJ, Marcelino Filho M. Relationship of the thickness and electric activity of the masseter muscle with bite force: a morphological and electrophysiological study. Rev CEFAC. 2016;18:589–600.
  5. Ispir NG, Toraman M. The relationship of masseter muscle thickness with face morphology and parafunctional habits: an ultrasound study. Dentomaxillofac Radiol. 2022;51(8):20220166. doi:10.1259/dmfr.20220166.
  6. Orhan K, Yazici G, Önder M, Evli C, Volkan-Yazici M, Kolsuz ME, et al. Development and validation of an ultrasonography-based machine learning model for predicting outcomes of bruxism treatments. Diagnostics (Basel). 2024;14(11). doi:10.3390/diagnostics14111158.
  7. Talmaceanu D, Lenghel LM, Bolog N, Hedesiu M, Buduru S, Rotar H, et al. Imaging modalities for temporomandibular joint disorders: an update. Clujul Med. 2018;91(3):280–287. doi:10.15386/cjmed-970.
  8. Van Den Engel-Hoek L, Lagarde M, Van Alfen N. Ultrasound of oral and masticatory muscles: why every neuromuscular swallow team should have an ultrasound machine. Clin Anat. 2017;30(2):183–193. doi:10.1002/ca.22818.

Details

Primary Language

English

Subjects

Oral and Maxillofacial Radiology

Journal Section

Research Article

Early Pub Date

December 29, 2025

Publication Date

December 29, 2025

Submission Date

July 6, 2025

Acceptance Date

September 11, 2025

Published in Issue

Year 2025 Volume: 52 Number: 3

APA
Hammudioğlu, Z. E., Kucuk Kurtgoz, M., Çeçen Erol, E., & Aktuna Belgin, C. (2025). Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study. European Annals of Dental Sciences, 52(3), 156-160. https://doi.org/10.52037/eads.2025.0022
AMA
1.Hammudioğlu ZE, Kucuk Kurtgoz M, Çeçen Erol E, Aktuna Belgin C. Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study. EADS. 2025;52(3):156-160. doi:10.52037/eads.2025.0022
Chicago
Hammudioğlu, Zarif Ece, Merve Kucuk Kurtgoz, Elif Çeçen Erol, and Ceren Aktuna Belgin. 2025. “Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study”. European Annals of Dental Sciences 52 (3): 156-60. https://doi.org/10.52037/eads.2025.0022.
EndNote
Hammudioğlu ZE, Kucuk Kurtgoz M, Çeçen Erol E, Aktuna Belgin C (December 1, 2025) Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study. European Annals of Dental Sciences 52 3 156–160.
IEEE
[1]Z. E. Hammudioğlu, M. Kucuk Kurtgoz, E. Çeçen Erol, and C. Aktuna Belgin, “Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study”, EADS, vol. 52, no. 3, pp. 156–160, Dec. 2025, doi: 10.52037/eads.2025.0022.
ISNAD
Hammudioğlu, Zarif Ece - Kucuk Kurtgoz, Merve - Çeçen Erol, Elif - Aktuna Belgin, Ceren. “Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study”. European Annals of Dental Sciences 52/3 (December 1, 2025): 156-160. https://doi.org/10.52037/eads.2025.0022.
JAMA
1.Hammudioğlu ZE, Kucuk Kurtgoz M, Çeçen Erol E, Aktuna Belgin C. Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study. EADS. 2025;52:156–160.
MLA
Hammudioğlu, Zarif Ece, et al. “Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study”. European Annals of Dental Sciences, vol. 52, no. 3, Dec. 2025, pp. 156-60, doi:10.52037/eads.2025.0022.
Vancouver
1.Zarif Ece Hammudioğlu, Merve Kucuk Kurtgoz, Elif Çeçen Erol, Ceren Aktuna Belgin. Assessment of Masseter Muscle Thickness Variations by Nationality in Female Bruxism Patients: An Ultrasonographic Study. EADS. 2025 Dec. 1;52(3):156-60. doi:10.52037/eads.2025.0022