Frequency of temporomandibular disorders diagnoses based on RDC/TMD in a Polish patient population.

OBJECTIVE: To assess the frequency and age distribution of Axis I and Axis II diagnoses among Polish patients with temporomandibular disorders (TMD).

METHOD: One hundred sixty-three (n = 163) consecutive adult patients seeking TMD treatment were assessed based on the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) guidelines. Descriptive statistics on the frequency of diagnoses and mean age of the diagnostic groups was performed.

RESULT: Frequency of muscle disorders, disc displacements, and other joint disorders was 56.9, 48.9, and 31%, respectively. Disc displacement was the most common diagnosis in younger patients. Severe somatization and depression were shown in 11.9 and 15.8% of patients, respectively. Only 10.5% of the patients showed severe pain-related impairment. Females tended to have higher psychosocial scores than males.

DISCUSSION: The frequency of Axis I TMD diagnoses in Polish patients is similar to other populations, whereas Axis II findings slightly differ from previous reports from other countries.