J Korean Dent Sci.  2020 Dec;13(2):59-66. 10.5856/JKDS.2020.13.2.59.

An Ultrasonographic Evaluation of Masseter Muscle Thickness in Patients Having Parafunctional Habit

• Odkhuu M
• Kim J
• Kim SJ

• KMID: 2511730
• DOI: http://doi.org/10.5856/JKDS.2020.13.2.59

Abstract

Purpose
The purpose of this study was to investigate the masseter muscle thickness before and after treatment using ultrasound sonography in patients with parafunctional habits.
Materials and Methods
From September 2019 to March 2020, a total of 27 patients who visited the Department of Oral and Maxillofacial Surgery at Ewha Womans University Seoul Hospital were collected. The thickness of both masseter muscles was measured using a tablet ultrasound scanner. Statistical analysis was performed by using the IBM SPSS version 26.0 statistical package (IBM Corp) with significance level at 0.05. Result: According to the statistical results, the thickness of the masseter muscle was thicker on the right side than on the left, with no correlation with sex or age. The severity and duration of pain did not have a significant correlation with the thickness of the masseter muscle. Botulinum A toxin injection in the masseter muscle was the most effective way to reduce pain and reduce the thickness of the masseter muscle. Splint treatment also showed some effects in reducing the thickness of the masseter muscle.
Conclusion
Based on the findings, it can be claimed that ultrasonography is simple, inexpensive and easily repeatable method to get real-time diagnosis and treatment results for masseter muscles.

Keyword

Masseter muscle; Bruxism; Ultrasonography