Provides information on the survival of crowns in all teeth by analysis of the time to re-intervention on the crowns and time to extraction of the crowned tooth.
Approximately 1.2 million crowns were included in the study, of which circa 880,000 were metal-ceramic. Overall, 53% of crowns have survived at 15 years, with 63% having survived to 10 years and 77% to 5 years, with factors influencing survival being patient age and patient treatment need.
When the data are re-analysed with regard to time to extraction of the restored tooth, crowns perform poorly, with teeth restored with direct restorations in amalgam and resin composite having better times to extraction.
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The authors acknowledge the support of the Economic and Social Data Service, the Health and Social Care Information Centre and the NHS Business Services Authority for collating and releasing this valuable data resource.
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Burke, F., Lucarotti, P. The ultimate guide to restoration longevity in England and Wales. Part 5: crowns: time to next intervention and to extraction of the restored tooth. Br Dent J 225, 33–48 (2018). https://doi.org/10.1038/sj.bdj.2018.523
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