The temporomandibular joint (TMJ) may be affected in a patient with scleroderma.
Signs and symptoms of TMJ involvement:
(1) masticatory muscle pain on chewing
(2) difficulty in opening the mouth (which may also be affected by skin sclerosis)
(3) headaches
Dysfunction of the temporomandibular joint:
(1) restricted range of motion (pseudoankylosis)
(2) reduced lateral excursion to the left and/or right
(3) reduced protrusion of the mandible
Mandibular bone resorption may be observed on radiographs.
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Specialty: Otolaryngology, Immunology/Rheumatology
