Immediate Effects of Asymmetric Chewing on Temporomandibular Joint Kinematics
10.18857/jkpt.2023.35.6.185
- Author:
Tae-Joon UM
1
;
Han-Seung CHOI
;
Dong Yeop LEE
;
Jae Ho YU
;
Jin Seop KIM
;
Seung Gil KIM
;
Jiheon HONG
Author Information
1. Department of Physical Therapy, College of Health Sciences, Sun Moon University, Asan, Republic of Korea
- Publication Type:Original Article
- From:
Journal of Korean Physical Therapy
2023;35(6):185-189
- CountryRepublic of Korea
- Language:English
-
Abstract:
Purpose:This study investigated the immediate biomechanical effects of unilateral mastication for 10 minutes on the temporomandibular joint (TMJ) with 21 healthy adult participants.
Methods:The gum group chewed gum on the right side for 10 minutes, and the control group rested for 10 minutes. Biomechanical data were obtained using a three-dimensional infrared camera before and after intervention. An independent t-test assessed the variation of kinematic data to identify differences between before and after intervention.
Results:Among biomechanical variables, the gum group’s length of the left forehead middle region and the temporomandibular joint angle decreased compared to the control group (p<0.05).
Conclusion:Caution with unilateral masticatory activity is recommended, as unilateral mastication causes biomechanical changes due to excessive load on the soft tissues of the contralateral TMJ.
