Objective: This paper examines the relative mix of single indirect restorations (SIRs) among an insured adult population. Methods: Claims data from Delta Dental Plan of Michigan in 2000 for adults born in the period between 1920 and 1985 were used in the analysis. Procedures were identified by submitted procedure codes. Results: Of 11,895,792 procedures performed in the year 2000, 452,418 procedures were SIRs (i.e. 3.8%). There was a general trend of increasing SIR utilization with increasing age, with maximum utilization in the 50-60 year old individuals. SIRs account for 5.4% of total procedures performed in this age group. Of all SIRs placed in 2000, approximately 98% were single crowns. The most frequently used single crowns were PFM crowns (79%), followed by metal crowns (17%), and the remaining portion were various types of ceramic and resin crowns (4%). Eighty percent of the SIRs were placed in posterior teeth. About fifty six percent of all-ceramic crowns (n=18,591) were placed in anterior teeth. Younger people were more likely to receive all-ceramic crowns than older individuals. In only 0.8% of crowned teeth was a post and/or core placed. About 2/3 of posts used were in posterior teeth. When a post was placed, a prefabricated post was used slightly less often than a cast post/core. Conclusions: 1.The majority of SIRs placed were single crowns. 2.Traditional types of crowns (PFM and metal) account for about 96% of all single crowns. 3.There was a clear differential utilization of SIRs and high esthetic SIRs among different age groups.

Back to the Prosthodontics Research Program
Back to the IADR/AADR/CADR 82nd General Session (March 10-13, 2004)

Top Level Search