Analysis of gender effects on pain perception and symptom presentation in temporomandibular pain

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Abstract
Based on clinical populations, chronic orofacial pain of temporomandibular disorders (TMD) occurs more frequently (range: 2:1 to 9:1) in women than men. The reasons for this difference are not clear. The present study evaluated symptom presentation, sensitivity to pain, personality, and illness behavior in 2 samples of patients suffering with orofacial pain. Also, pain responses were studied in pain-free volunteers, controlling for experimenter-gender effects. The results showed few gender differences based on ratings of chronic or experimental pain, pain-related illness behavior, and personality. The higher ratio of women versus men seeking TMD care is consistent with greater health awareness or interest in symptoms by women than by men.