Primary study · included by 1 review

Five-year randomized controlled clinical study comparing cemented and screw-retained zirconia-based implant-supported single crowns.

Kraus 2022 · Kraus Riccardo D, Espuelas Catharina, Hämmerle Christoph H F, et al. · Clinical oral implants research · 2022

Included by

Clinical Efficacy of Cemented Versus Screw-Retained Zirconia Single Crowns: A Systematic Review and Meta-Analysis.
Non-Cochrane · intervention · 2026 · cited as Kraus 2022 · Table 1; reference 23
Outcome this study informsPooled effectEvidenceCertainty
Bleeding on probing (BoP)
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD 5.18 [-5.92, 16.29]5 studies · 178 participantsVery low
Fracture
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
RR 0.99 [0.82, 1.19]4 studies · 145 participantsLow
Plaque index (PI)
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD 0.01 [-0.13, 0.14]3 studies · 121 participantsLow
Marginal bone level (MBL)
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD -0.04 [-0.08, -0.001]8 studies · 298 participantsModerate
Marginal bone level (MBL) change
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD -0.04 [-0.08, -0.00]NRGRADE not reported
Marginal bone level (MBL) change
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD -0.04 [-0.08, -0.00]NRGRADE not reported
Probing depth (PD)
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD 0.03 [-0.16, 0.22]5 studies · 178 participantsModerate
Screw loosening
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
RR 0.94 [0.5, 1.77]3 studies · 119 participantsLow

1 including review in total.