Fifteen-year recall period on zirconia-based single crowns and fixed dental prostheses. A prospective observational study
Abstract Aim The aim of this study was to evaluate the long-term clinical outcomes of zirconia-based prostheses used for tooth-supported or implant-supported single crowns and fixed dental prostheses (FPD). Methods The authors conducted a prospective analysis of 562 zirconia core restorations suppor...
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| Main Authors: | , , , , , , , , |
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| Format: | Book |
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Nature Publishing Group,
2024-06-01T00:00:00Z.
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| Summary: | Abstract Aim The aim of this study was to evaluate the long-term clinical outcomes of zirconia-based prostheses used for tooth-supported or implant-supported single crowns and fixed dental prostheses (FPD). Methods The authors conducted a prospective analysis of 562 zirconia core restorations supported by endodontically treated teeth or titanium implant in 276 patients in a general dental private practice, with a follow-up period of 15 years. The study was stopped after patients achieved 15 yrs of follow-up. The study analyzed the failure and complication rates of single and multiple crowns, based on Kaplan Meier analysis. Results During follow-up period, there were 26 complications and 156 failures. The crown level analysis revealed a cumulative failure rate of 28.33% and complication rate of 8.47% for zirconia crowns after 15 years. The complication rate was found to be higher for titanium implant-supported than for natural teeth-supported crowns. The different types of crown-based failure include: veener fracture 5.01% (N = 29), metal zirconia led to 14.85% (N = 86) loss of retention, and 1.73% (N = 10) loss of crown due to extraction. Conclusion Based on these findings, zirconia core restorations appear to be a reliable long-term solution for crowns and fixed dental prostheses. Clinical relevance The study suggests that zirconia restorations can be successfully used for long-term prostheses on natural teeth or implants supported. The study results provide clinicians valuable information when selecting prosthetic restorations material. |
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| Item Description: | 10.1038/s41405-024-00214-7 2056-807X |