A total of 432 patients aged 34 to 60 were examined, 226 of them aged 31 to 59 were admitted for treatment. Out of 1980 examined cermet crowns fixed on depulped teeth complications were detected round 412 (20.88%). Inflammations of the gingiva were found near 218 crowns, apical chronic periodontitis in 98 cases, functional over-exercise of the periodontium in 61, ceramic fracture in 18, failure of cement fixation in 17 cases. When all prophylactic measures are taken, apical periodontitis was properly treated, and dental channels filled during pulp removal, if indicated, complications develop almost three times less frequently, occurring in 7.4% of cases.