The two materials
Most dental implant systems are made of titanium or zirconium oxide, also called zirconia.1 The ITI consensus groups zirconia with ceramic materials.3 Titanium implants have the longer research record: a 2019 systematic review of 18 prospective studies estimated 10-year survival of titanium implants at 96.4 percent.2
One-piece and two-piece designs
A one-piece implant has the implant body and abutment made as a single unit.3 A two-piece implant has a separate abutment joined to the implant.3 The ITI Group 2 consensus (2018) stated that one-piece zirconia implants can be recommended when clinical conditions are appropriate.3 The same consensus advised caution with two-piece zirconia implants because of insufficient data.3
Zirconia results at 5 years
A 2023 systematic review looked for studies of commercially available zirconia implants followed for at least 5 years.4
| Measure at 5 years | Result |
|---|---|
| Implant survival | 97.2 percent |
| Mean bone loss | 1.1 mm |
| Mean probing depth | 3.0 mm |
| Implants studied | 277 |
| Patients studied | 221 |
Only 6 cohort studies met the review's criteria.4 The authors called for well-designed trials that compare titanium and zirconia implants directly.4
Comparing the evidence
| Titanium | Zirconia | |
|---|---|---|
| Longest pooled follow-up in this library | 10 years2 | 5 years4 |
| Pooled survival | 96.4 percent at 10 years2 | 97.2 percent at 5 years4 |
| Consensus position | Standard material1 | One-piece recommended in appropriate conditions; two-piece with caution3 |
Abutments on titanium implants
Zirconia can also be used for the abutment on a titanium implant.5 A 2023 meta-analysis of randomized trials found no difference in bone level or gum pocket depth between titanium and zirconia abutments up to 5 years.5
General information about dental implants. Treatment decisions are made with a licensed dentist.
Sources
- U.S. FDA: Dental Implants, What You Should Know. fda.gov
- Howe MS, Keys W, Richards D. Long-term (10-year) dental implant survival. J Dent 2019. pubmed.ncbi.nlm.nih.gov
- Morton D et al. Group 2 ITI Consensus Report: Prosthodontics and implant dentistry. Clin Oral Implants Res 2018. pubmed.ncbi.nlm.nih.gov
- Roehling S et al. Clinical and radiographic outcomes of zirconia dental implants. Clin Oral Implants Res 2023. pubmed.ncbi.nlm.nih.gov
- Laleman I et al. Effect of different abutment materials on peri-implant tissues. Clin Oral Implants Res 2023. pubmed.ncbi.nlm.nih.gov
