The clinical performance of all-ceramic implant-supported single crowns: A systematic review and meta-analysis.

Rabel K, Spies BC, Pieralli S, Vach K, Kohal RJ

The clinical performance of all-ceramic implant-supported single crowns: A systematic review and meta-analysis.

Rabel K, Spies BC, Pieralli S, Vach K, Kohal RJ: The clinical performance of all-ceramic implant-supported single crowns: A systematic review and meta-analysis. Clin Oral Implan Res, 2018; 29 Suppl. 18: 196-223. : http://dx.doi.org/10.1111/clr.13337

Originalarbeiten in wissenschaftlichen Fachzeitschriften

Objective This review aimed at evaluating the survival and technical complication rates of all‐ceramic implant‐supported single crowns (SC). Material and Methods Three electronic databases were searched for clinical studies conducted at ≥ 15 patients examining implant‐supported all‐ceramic SCs over ≥ 12 months. Survival rates of implants and restorations plus technical complication rates of SCs were calculated and tested for statistical correlation with confounding variables. Statistical analysis was performed using a negative binomial distribution model to calculate 5‐ and 10‐year survival and complication estimates. Results Forty‐one included studies reported on implant‐supported SCs made of veneered and monolithic high‐strength oxide ceramics, monolithic, and veneered glass‐based ceramics and of a monolithic resin‐nano‐ceramic (RNC). Survival estimates for SCs of 93% (95% CI: 86.6%–96.4%) after 5 years and 94.4% (95% CI: 91.1%–96.5%) after 10 years were calculated, corresponding values for implant survival were 95.3% (95% CI: 90.6%–97.7%) and 96.2% (95% CI: 95.1%–97.1%). Technical complication rates after 5/10 years were as follows: chipping 9.0% (95% CI: 5.4%–14.8%)/2.7% (95% CI: 2.1%–3.5%), framework fractures 1.9% (95% CI: 0.7%–4.9%)/1.2% (95% CI: 1%–1.5%), screw loosening 3.6% (95% CI: 1.6%–8.4%)/5.2% (95% CI: 3.6%–7.5%), and decementations with 1.1% (95% CI: 0.4%–2.8%) after 5 years. Some confounding variables influenced the above‐mentioned estimates significantly. Conclusions All‐ceramic implant‐supported SCs showed—with the exception of a RNC material—high survival rates. However, failures and technical complications occurred which have to be considered when informing patients on the treatment with implant‐supported all‐ceramic SCs.

0905-7161

http://dx.doi.org/10.1111/clr.13337

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