Table 1.
Summarized data of the included studies—patients rehabilitated with implant-supported prosthesis on zirconia implants
| Variable | |
|---|---|
| Patients (n)/implants (n) | 2083/4017 |
| Age (years), mean ± SD (min–max) | 51.2 ± 14.7 (18–90) |
| Sex, n (%) | |
| Men/women | 851 (42.4) /1,157 (57.6) |
| Not available | 75 |
| Implants per patient (n), mean ± SD (min–max) | 1.91 ± 1.51 (1–14) |
| Implant type, n (%) | |
| One-piece | 3818 (95.0) |
| Two-piece | 199 (5.0) |
| Implant location, n (%) | |
| Jaw | |
| Maxilla | 2264 (58.1) |
| Mandible | 1,632 (41.9) |
| Not available | 121 |
| Region | |
| Anterior | 850 (24.8) |
| Posterior | 2572 (75.2) |
| Not available | 595 |
| Healing time (months), mean ± SD (min–max) | 2.66 ± 1.79 (0–11) |
| Immediate loading, number implants (%) | 980 (24.4) |
| 0.5–3 months, number implants (%) | 2097 (52.2) |
| 4–6 months, number implants (%) | 911 (22.7) |
| > 6 months, number implants (%) | 29 (0.7) |
| Prosthesis type, n (%) | |
| Single crown | 1326 (85.0) |
| FDP (2–5 units) | 150 (9.6) |
| Overdenture | 84 (5.4) |
| Not available | 2457 |
| Follow-up (months), mean ± SD (min–max) | |
| Implants | 68.8 ± 52.5 (0.3–180.0) |
| Prostheses | 66.8 ± 52.4 (1.0–177.0) |
| Preparation of the implant coronal part, n (%) | |
| No | 3253 (81.0) |
| Yes | 764 (19.0) |
| Implant failure (n), failure/total (%) | |
| Implant level | 172/4017 (4.3) |
| Patient level | 141/2083 (6.8) |
| One-piece implant | 157/3,818 (4.1) |
| Two-piece implant | 15/199 (7.5) |
| Commercially available | 78/3,182 (2.5) |
| Not commercially availablea | 94/835 (11.3) |
| Preparation of the implant coronal part | |
| No | 115/3,253 (3.5) |
| Yes | 57/764 (7.5) |
| Time of failure (months), mean ± SD (min–max) | 12.0 ± 16.1 (0.3–86.0) |
| Early failuresb, number/total (%) | 47/115 (40.9) |
| Implant fracturec, number/total (%) | 26 d/172 (15.1) |
| One-piece implant | 25/3,818 (0.7) |
| Two-piece implant | 1/199 (0.5) |
| Implant coronal part not prepared | 8/3,245 (0.2) |
| Drill-prepared coronal part | 18/746 (2.4) |
| Lost implant replaced by a new onee, number/total (%) | 36/54 (66.7) |
| Implant location e, n (%) | |
| Maxilla anterior | 41 (26.8) |
| Maxilla posterior | 45 (29.4) |
| Mandible anterior | 26 (17.0) |
| Mandible posterior | 41 (26.8) |
| Implant system, n (%) | |
| CeraRoot Ca | 249 (6.2) |
| CeraRoot ICE f | 2114 (52.6) |
| CeraRoot UC a | 249 (6.2) |
| Nobel Biocare ZiUnitea | 122 (3.0) |
| Own manufactureda | 121 (3.0) |
| Southern Implantsa | 77 (1.9) |
| Straumann PURE Ceramicf | 374 (9.3) |
| VITA ceramic.implantf | 71 (1.8) |
| VOLZIRKON1a | 22 (0.6) |
| VOLZIRKON2a | 22 (0.6) |
| White-SKYf | 72 (1.8) |
| Z-Look3a | 338 (8.4) |
| ZERAMEX Ta | 49 (1.2) |
| Ziraldent FR1f | 53 (1.3) |
| Ziteriona | 16 (0.4) |
| ZV3a | 68 (1.7) |
FDP, fixed dental prosthesis
aImplants that were discontinued by the manufacturers, namely, no longer produced. Or implants that were manufactured only for the study
bFailure up to the abutment connection; 57 out of the 172 failed implants were submitted to the immediate loading protocol
cPercentage from the implant cases that failed
dEighteen out of the 26 implant fractures (69.2%) were observed in the study of Roehling et al. [51]
eFor the cases with available information
fImplants commercially available