Direct answer

Titanium remains the reference material because it has decades of evidence across more patients, designs, and restorative indications. Modern zirconia implants have encouraging medium-term outcomes, especially in selected one-piece uses. Direct comparative reviews do not establish zirconia as universally superior, and their conclusions vary with which implant systems, studies, follow-up periods, and outcome definitions are included.

Key takeaways

  • Evidence breadth and duration differ substantially between the materials.
  • Zirconia five-year survival estimates are encouraging but based on modest cohorts.
  • Comparative randomized evidence remains limited and system-dependent.
  • Survival, success, bone loss, tissue health, and esthetics are different outcomes.
  • A pooled material-level number cannot validate every commercial implant.

What evidence should be compared?

Laboratory tests examine mechanisms and failure conditions. Animal and histologic studies examine tissue interfaces. Cohorts show performance in selected clinical populations. Randomized trials offer stronger direct comparisons but may evaluate discontinued devices or unusual protocols. Systematic reviews depend on the quality and compatibility of those underlying studies.

What zirconia outcome studies show

A 2023 systematic review of six cohorts and 277 commercially available zirconia implants estimated 97.2% five-year survival and mean marginal bone loss of about 1.1 mm. Most evidence centered on one-piece implants supporting single crowns or short fixed prostheses, limiting generalization.

Why comparative reviews reach different conclusions

Reviews differ in eligibility criteria, implant generations, available products, restoration types, risk of bias, follow-up, and outcome definitions. A 2023 RCT meta-analysis found a lower pooled success result for zirconia but no clear difference across several peri-implant measures; another review found no survival difference but favored titanium for marginal bone loss. Small study counts require caution.

What newer biological evidence adds

A 2026 review found no significant difference in biological complications in the included comparative clinical studies. This narrows one question—tissue complications—but does not equalize the size of the broader evidence bases or answer every design and indication question.

How to apply evidence to one patient

Identify the exact implant, one- or two-piece design, surface, connection, restoration, patient population, follow-up, and outcome. Then ask whether those conditions resemble the proposed case. Evidence should inform an individualized recommendation, not replace it.

Selected references

  1. Roehling S, Gahlert M, Bacevic M, et al. Clinical and radiographic outcomes of zirconia dental implants. Clinical Oral Implants Research. 2023;34(Suppl 26):112–124. doi:10.1111/clr.14133.
  2. Duan C, Ye L, Zhang M, et al. Clinical performance of zirconium implants compared to titanium implants: a systematic review and meta-analysis of randomized controlled trials. PeerJ. 2023;11:e15010. doi:10.7717/peerj.15010.
  3. Apaza Alccayhuaman KAA, et al. Biological complications and peri-implant tissue response of zirconia compared with titanium dental implants. International Journal of Oral & Maxillofacial Implants. 2026. doi:10.11607/jomi.11786.