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How does temporomandibular dysfunction affect neck awareness, cervical sensorimotor performance, and pain
Nagihan Acet1, Murat Esmer2, Sena Begen1
1Atılım University, Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation - Ankara, Türkiye.
Objective:
The temporomandibular joint is anatomically and neurologically associated with the cervical spine. The aim of this study was to investigate the impact of temporomandibular disorder on neck awareness, cervical sensorimotor performance, and pain sensitivity, including pressure pain threshold, pressure pain tolerance, and temporal summation.
Methods:
In this observational, cross-sectional study, the diagnostic criteria for temporomandibular disorders were used to evaluate temporomandibular disorder. Trial registered as NCT06558318. Participants were divided into two groups based on temporomandibular disorder presence: a temporomandibular disorder group (n=25) and an asymptomatic control group (n=25). Neck awareness was evaluated using the Fremantle Neck Awareness Questionnaire, while cervical sensorimotor performance was assessed using the "joint position error test" for both the global cervical region and the isolated upper cervical region, measured separately with a cervical range of motion device. Pain pressure threshold, pain pressure tolerance, and temporal summation were measured using a mechanical pressure algometer.
Results:
No significant differences were found between the temporomandibular disorder and control group in pain-related parameters (p>0.05). Neck awareness was significantly impaired in the temporomandibular disorder group (p<0.001), although the joint position error tests showed no significant differences (p>0.05).
Conclusion:
The presence of temporomandibular disorder did not affect pain sensitivity in the cervical region. While sensorimotor performance was not impaired in either the global or the isolated upper cervical region, neck awareness was affected in the temporomandibular disorder group. This suggests that neck awareness in patients with temporomandibular disorder should be considered in clinical evaluation and management.
