The prevalence and treatment needs of subjects with temporomandibular disorders

Disorders of the temporomandibular joint (TMJ), the joint between the jaw bone and the skull, are characterized by pain and dysfunction of jaw motion. There are few reports on the incidence of temporomandibular joint disorders (TMD) and the need for treatment. Specific diagnostic criteria were used to determine the incidence and the severity of muscle and TMJ disorders in 269 female nursing students. The subjects completed a questionnaire and were given a clinical examination. The most frequently reported symptom was noise on TMJ motion. Although 69 percent of the students exhibited clinical signs of TMD, symptoms were severe enough to warrant treatment in only 6 percent. There was a high incidence of pathosis, or abnormal condition, but a correspondingly low level of symptomatology. Clicking sounds in the TMJ represent a benign condition in asymptomatic patients. The major source of pain appears to be the jaw muscles. These findings support conservative management before considering surgery for TMD. (Consumer Summary produced by Reliance Medical Information, Inc.)