A PROCEDURE FOR MAKING FIXED PROSTHODONTIC IMPRESSIONS WITH THE USE OF PREFORMED CROWN SHELLS

Void-free impressions of tooth preparations for fixed prosthodontics a re essential for accurately fitting restorations; however, commonly us ed impression methods are arduous and time-consuming. A procedure has been developed in which an impression is made in a preformed temporary crown shell for each tooth preparation and then a final over impressi on is made. The result is an atraumatic and uncomplicated complete-arc h impression that incorporates an accurate impression of each prepared tooth.