Masseter muscle nodule due to bruxism. A case in point.
A 16-year-old white boy had a soft subcutaneous mass in the right masseter muscle. The pediatrician and two surgeons the patient had previously consulted had disagreed as to the origin of the mass and its treatment; their recommendations had ranged from leaving it alone to surgical excision. Treatment involved an orthopedic oral appliance restoring vertical dimension to its genetic norm and galvanic muscle stimulation. After 1 year the mass was eliminated.
D000293:Adolescent; D002012:Bruxism / Q000150:complications* / Q000628:therapy; D004599:Electric Stimulation Therapy; D006801:Humans; D008297:Male; D008406:Masseter Muscle / Q000473:pathology* / Q000503:physiopathology; D008410:Masticatory Muscles / Q000473:pathology*; D009064:Mouth Protectors; D009119:Muscle Contraction; D009135:Muscular Diseases / Q000209:etiology / Q000628:therapy; D011379:Prognosis; D013165:Splints