Direct answer

Both implant-grade zirconia and titanium are considered biocompatible when used in validated dental implant systems. Both can support osseointegration and clinically healthy peri-implant tissues. A 2026 systematic review found no significant difference in biological complications in the included comparative studies. This does not make the materials identical, but it does not support claiming that zirconia universally prevents inflammation better.

Key takeaways

  • Biocompatibility applies to a finished device in a particular use—not only a bulk material.
  • Both zirconia and titanium can support bone integration.
  • Comparative clinical evidence found similar biological-complication outcomes overall.
  • Laboratory plaque or cell findings do not automatically predict patient disease.
  • Patient risk, implant position, restoration design, hygiene, and maintenance remain decisive.

Bone integration

Preclinical comparisons support broadly similar osseointegration potential for appropriately engineered zirconia and titanium surfaces. Surface topography, chemistry, surgery, stability, bone, and healing time influence the interface, so material-wide conclusions should not erase system differences.

Soft tissue and biological complications

The 2026 comparative review included six studies and 354 implants. Three studies reporting biological complications found no significant material difference. An isolated increase in bleeding on probing around zirconia at 12 months was not accompanied by differences in plaque, probing depth, or biological complications, and its significance remained uncertain.

Why laboratory differences require caution

Surface studies may measure cell behavior, bacterial adhesion, wettability, or inflammatory markers. These results help explain possible mechanisms but cannot establish that one material prevents peri-implantitis or improves implant survival in patients.

What this means for material choice

Biocompatibility supports both materials as possible choices. The decision should then consider evidence maturity, design, anatomy, restoration, esthetics, component composition, patient preference, and clinician experience. Avoid language that describes titanium as inherently toxic or zirconia as biologically invisible.

Selected references

  1. Apaza Alccayhuaman KAA, Zandinejad A, Beltrao R, 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.
  2. Roehling S, Gahlert M, Janner S, et al. Zirconia compared to titanium dental implants in preclinical studies: a systematic review and meta-analysis. Clinical Oral Implants Research. 2019;30(5):365–395. PMID: 30916812.