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A total of 258 patients aged 29 to 59 wearing cermet dentures for 3 to 10 years were examined. Complications, such as ceramic fracture, inflammatory changes in the gingiva, functional overexercise of the periodontium, failure of cement fixation of the crown, apical periodontitis, occurred in 32 (12.4%) patients. The causes of these complications were analyzed and measures to prevent them developed. 284 patients aged 28 to 60 were fitted with cermet dentures after therapeutic and orthodontic preparation, with all prophylactic measures being adhered to; the results were followed up for 3 to 10 years. The incidence of complications reduced almost four-fold: they were observed in but 3.5% of patients.

A total of 262 patients aged 32 to 58 were examined and 246 patients aged 30 to 60 were treated. Of the 944 cermet crowns examined complications were found in 88 (9.34%). Ceramic fractures occurred in 20 crowns, inflammatory processes in the gingiva developed in 22 cases, functional overexercise of the periodontium in 21, failure of cement fixation in 18, apical periodontitis in 7 cases. The causes of these complications are analyzed and measures to prevent them worked out. If all preventive measures were adhered to in the treatment of 246 patients fitted with dentures, complications occurred three times more seldom (in only 3.14% of cases).

Orthodontic treatment using cermet dentures was carried out in 496 patients aged 26 to 60. Therapeutic surgical and orthodontic treatment of the maxillodental system was carried out before denture fixation. Late results in periods from 1 to 5 years were followed up in 396 patients. No complications were observed in 384 (96.9%). Only 12 patients developed complications: porcelain fracture in 4, periodontal inflammations in 5, and a partial relapse of occlusion reduction and distal dislocation of the mandible in 3.