Study | Follow-up period | Age (mean, years) | Implant system | Implant size (mm) | Intervention | Control | Outcomes | |
Mini | Conventional | |||||||
Aunmeungtong 2017 | 12 months | Two mini: 69.26 ± 11.2; Four mini: 66.65 ± 6.28; Conv: 73.8 ± 10.4 | PW plus® (Nakhon Pathom, Thailand) | D = 3.0 L = 12 | D = 3.75 L = 10 | 40 patients received immediate loading of mini-implants (20 two and 20 four implants). | 20 patients received immediate loading with two conventional-sized implants. | Implantation success rate, radiographic bone level changes, prosthodontic complications and patient satisfaction. |
Threeburuth 2018 | 12 months | 64.1 ± 5.56 | PW plus® (Nakhon Pathom, Thailand | D = 3.0 L = 12 | D = 3.75 L = 10 | 15 patients received immediate loading of two mini-implants. | 15 patients received immediate loading of two conventional dsized implants. | Radiographic bone loss, patient satisfaction and implantation success rate. |
Zigogiannis 2017 | 12 months | 67.9 ± 7.7 | Straumann implants, Isntitut Straumann | D = 1.8, 2.1 or 2.4 L = 10 - 18 (range) | D = 3.3 or 4.1 L = 10 or 12 | 25 patients received immediate loading of four mini-implants. | 15 patients received immediate and 10 received delayed loading of two standard-sized tissue-level implants. | Marginal bone loss, success and survival rates. |
Omran 2013 | 12 months | Not available | Sendax MDI MAX; IMTEC, Corp., Ardmore, USA) and Tapered Internal dental implant system, Biohorizons Co., USA | D = 1.8 L = 15 | Normal sized | 7 patients received immediate loading of four mini-implants mandibular overdentures opposing a maxillary complete denture | 7 patients received immediate loading of two ball attachments carried on two normal-sized implants. | Marginal bone height changes. |