evidencegaps
Primary study · included by 1 review

One-piece zirconia oral implants for single-tooth replacement: Three-year results from a long-term prospective cohort study.

Kohal 2018 · Kohal Ralf-Joachim, Spies Benedikt C, Bauer Annalena, et al. · Journal of clinical periodontology · 2018

Included by

Prevalence of Peri-Implantitis Around Zirconia Implants: A Systematic Review and Meta-Analysis of Current Evidence.
Non-Cochrane · prognostic · 2026 · cited as Kohal 2018 · Table 1; ref 36; Results (forest plot follow-up subgroup)
Outcome this study informsPooled effectEvidenceCertainty
Peri-implantitis prevalence (implant level)
Zirconia implants vs None (single-arm prevalence) · Follow-up <= 3 years
Prevalence (%) 2 [0, 6]10 studies · 533 participantsGRADE not reported
Peri-implantitis prevalence (implant level)
Zirconia implants vs None (single-arm prevalence) · Follow-up <= 3 years
Prevalence (%) 1 [0, 5]11 studies · 579 participantsVery low

1 including review in total.