Stress Related Somatic Manifestations and Their Influence on Temporomandibular Disorder Severity

Temporomandibular disorders (TMDs) include painful and dysfunctional conditions affecting the temporomandibular joints, masticatory muscles, and related structures. Structural findings alone often do not explain differences in pain intensity, disability, or persistence. Psychological stress can be accompanied by somatic manifestations such as headache, neck and shoulder pain, fatigue, disturbed sleep, gastrointestinal discomfort, dizziness, palpitations, and widespread bodily pain. These symptoms may influence TMD severity through autonomic arousal, altered hypothalamic-pituitary-adrenal regulation, increased oral parafunction, muscle guarding, impaired sleep, heightened pain vigilance, and central sensitization. The relationship is bidirectional: stress and somatic burden may increase vulnerability to painful TMD, while continuing jaw pain and functional limitation can intensify distress and bodily symptoms. Prospective findings from the Orofacial Pain Prospective Evaluation and Risk Assessment programme identify global psychological and somatic symptoms as important predictors of first-onset painful TMD. Recent systematic evidence also links stress, anxiety, depression, and somatization with TMD development and severity. Clinical assessment should therefore combine physical diagnosis with evaluation of pain-related disability, somatic symptom burden, mood, sleep, oral behaviours, and daily function. Screening does not imply that pain is imaginary or exclusively psychological. Management should begin with conservative, reversible care and may include education, graded jaw exercise, manual therapy, cognitive behavioural therapy, stress regulation, sleep intervention, and coordinated referral. A biopsychosocial approach can reduce unnecessary procedures while addressing the physical and psychosocial factors that sustain symptom severity.

Keywords: temporomandibular disorders, psychological stress, somatic symptoms, pain severity, somatization, biopsychosocial care