Study Year of publication Study type Patient number Patient age
(years) 		Gender Implant sample Dental implant systems Implant alloy or coating material Follow-up period
(years)
Gadzo et al. [24] 2023 RCT 43 67.3 (SD 11) 21 females,
22 males 		69 Astra Tech Implant System™ EV
(Dentsply Sirona);
Straumann ITI® (Straumann AG) 		TiO-blasting;
SLA 		10
Ioannidis et al. [25] 2019 Prospective
RCT 		64 > 18 38 females,
26 males 		57 Astra Tech Implant System™ EV
(Dentsply Sirona);
Straumann® (Straumann AG) 		TiO-blasting;
SLA 		5
Koller et al. [26] 2020 Prospective
RCT 		22 > 18 9 females,
13 males 		31 Ziterion® Vario T
(Ziterion GmbH) 		Sandblasted titanium;
sandblasted zirconia 		5
Raes et al. [27] 2018 RCT 15 46 to 72 4 females,
11 males 		83 Brånemark MK III®
(Nobel Biocare AB) 		Anodic oxidation;
turned implant 		5
Donati et al. [28] 2018 RCT 25 57.6 (SD 10) 25 females 64 Astra Tech Implant System™ EV
(Dentsply Sirona) 		Turned implant;
TiO-blasting 		20

RCT = randomized controlled trials.