[The functional periodontal overload in bite anomalies in adults].

A total of 3890 patients (1440 women and 2450 men) aged 30 to 60 were examined. Maxillodental abnormalities were detected in 1282 (32.9%) examinees. Periodontal diseases were diagnosed in 986 (81.4%) patients with maxillodental abnormalities. Periodontitis was detected in 1298 (49.7) of 2608 examinees with normal occlusion. A higher incidence of periodontal diseases in the patients with maxillodental abnormalities is explained by functional traumatic overload of periodontal tissues. This overload is enhanced when occlusion abnormalities are combined with bursitis and other parafunctions of the masticatory muscles, in dentition defects and deformations and in cases with irrational dentures.