Summary review of the survival of single crowns.
It generally is assumed by both dentists and patients that single crowns last a long time; however, the actual survival experience for crowns is not well-described and few comparisons have been reported in terms of survival for different types of crowns. A review of the literature reveals that while definitions of survival differ, the differences among crown types are relatively small, with all-ceramic posterior crowns demonstrating the poorest survival experience. Generally, 95% of crowns will remain in the mouth for at least five years--or, to use another definition of survival, more than 90% of crowns will not require catastrophic treatment within five years. Longer-term survival is less well-described; according to the literature, survival at 15-20 years ranges from 50-80%. These findings should help dentists and their patients to make informed treatment decisions regarding crowns.
Bader
James D
JD
Department of Operative Dentistry, University of North Carolina, Chapel Hill, USA.
Shugars
Dan A
DA
D003442:Crowns / Q000706:statistics & numerical data*; D003764:Dental Materials / Q000737:chemistry; D003776:Dental Porcelain / Q000737:chemistry; D019232:Dental Restoration Failure; D006801:Humans; D016876:Metal Ceramic Alloys / Q000737:chemistry; D016019:Survival Analysis; D013997:Time Factors
D003764:Dental Materials; D016876:Metal Ceramic Alloys; D003776:Dental Porcelain