The development of a computer-aided design system for a clinical crown restoration is reported. Initially, th shape of the standard crown was deformed and adapted on the die epending on the shape of the margin. Then, the measured occlusal record data were taken in the computer graphics, and the adapted crown was adjusted with these data to obtain using a functionally generated path record and the occlusal interferences eliminated. The ends of the adapted crown were connected with the margin. Thus, the entire crown was efficiently designed using the computer program developed.