An evaluation of crowns and bridges in a general dental practice

Summary In this article the results are presented of an evaluation of crowns and bridges in a general practice. The study includes 601 solitary crowns, 213 crowns on bridge abutments and 103 crowns on RPD abutments. In total eighty‐four bridges were examined. All these restorations were constructed during a period of 11.5 years. By means of the Kaplan‐Meier method a prognosis is given of the life span of the different solitary crown‐types over periods between 1 and 11 years. The total amount of failures and follow‐up treatments on bridge and RPD abutments was very small. The authors also examined whether the bridges were constructed according Ante's law. A follow‐up of this study in other Dutch general practices in combination with experimental clinical trials is under way.