Quality of fixed prosthodontics after twenty-two years.

After an observation period of 22 years, this study was conducted to clinically examine and interview patients who in 1984 and 1989 had participated in similar investigations regarding the quality, over time. of treatments with fixed partial dentures. The patients were examined by two standardized and experienced clinicians using thc California Dental Association quality rating system, their results indicating that after 22 years the overall survival rates were 46.