Table 2.
Studies’ characteristics and detailing.
| Author | Year | Patients | Period | Mean Age | Gender | Dropout | Titanium Implant (n) | Zirconia Implant (n) | Connection | Company | Implant Lost | Type of Rehabilitation |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Koller et al. | 2020 | 22 | 80 months | 46 | 13M/9F | 0 | 15 | 16 (Zr) | Morse-taper | Ziterion® (Vario T; Ziterion) | 1 Ti/2 Zr | All ceramic (lithium disilicate) single restorations |
| Müller et al. | 2015 | 47 | 5 years | 72 | 24M/23F | 16 | 47 | 47 (TZ) | Morse-taper | Straumann (Bone Level) | 1 Ti/1 TZ | Overdentures |
| Ioannidis et al. | 2015 | 40 | 3 years | NR | Not clear | NR | 20 | 20 (TZ) | Morse-taper | Straumann | NR | Single-implant crown (porcelain-fused-to-metal crowns) in the anterior or premolar regions |
| Tolentino et al. | 2016 | 12 | 1 year | 43.3 | 4M/8F | 0 | 5 | 5 (TZ) | Morse-taper | Straumann | 0 | Screw-retained single metal-ceramic crown in the mandible |
| Osman et al. | 2013 | 24 | 1 year | 62 | 15M/4F | 5 | 56 | 73 (Zr) | External hexagon | Southern Implants | 10 Ti/21 Zr | Overdentures |
| Al-Nawas et al. | 2011 | 91 | 1 year | 65.8 | NR | 21 | 70 | 70 (TZ) | Morse-taper | Straumann (Bone Level) | 2 Ti/1 TZ | Overdentures |
| Siddiqi et al. | 2015 | 24 | 1 year | 62 | 15M/4F | 3 | 70 | 80 (Zr) | External hexagon | Southern Implants | 10 Ti/21 Zr | Overdentures |
NR, not reported; M, male; F, female; Ti, titanium; TZ, titanium–zirconium; Zr, zirconia.