Table 2 Analysis of survival rates of implants and overdentures in case of 4 splinted implants
Study | No.implants for patient, location | Pre-implant bone augmentation | Anchorage system | Bar Fabrication | Follow up(months) | Total no. impl | Total no. lost impl | Survival rate of implants (%) | Total no. OVD | Survival rate of OVD (%) |
|---|---|---|---|---|---|---|---|---|---|---|
Slot et al. [19] | 4, posterior region | Sinus floor | Milled titanium bar with mesial extensions and gold retentive clips | Abutment level | 60 | 116 | 0 | 100 | 29 | 100 |
Slot et al. [20] | 4, anterior region | No | Milled titanium eggshaped bar with distal extensions | Abutment level | 60 | 96 | 0 | 100 | 24 | 100 |
Slot et al. [21] | 4, posterior region | Sinus floor | Milled titanium bar with mesial extensions, and gold retentive clips | Abutment level | 12 | 132 | 0 | 100 | 33 | 100 |
Slot et al. [22] | 4, anterior region | No | Milled titanium eggshaped bar with distal extensions | Abutment level | 12 | 96 | 0 | 100 | 24 | 100 |
Boven et al. [23] | 4, anterior region | Some sinus floor | Milled titanium eggshaped bar with distal extensions | Abutment level | 12 | 96 | 2 | 97.9 | 24 | 100 |
Krennmair et al. [25] | 4, anterior region | No | Titanium or gold bar with distal extensions and retentive clips | Abutment level | 42 | 64 | 0 | 100 | 16 | 100 |
Zou et al. [26] | 4, ND | No | Dolder gold bar | Abutment level | 36 | 40 | 0 | 100 | 10 | 100 |
Mangano et al. [27] | 4, anterior region | No | Cobalt-chrome bar, without extensions and gold retentive clips | Abutment level | 36 | 112 | 3 | 97,4 | 28 | 93,3 |
Katsoulis et al. [28] | 4, ND | No | Titanium or dolder gold bar with distal extension | Implant level | 24 | 88 | 1 | 98,9 | 22 | 100 |
Mangano et al. [29] | 4, anterior region | No | Eggshaped dolder gold bar with or without distal extensions | Abutment level | 60 | 152 | 4 | 97,4 | 38 | 100 |
Akca et al. [30] | 4, ND | No | Eggshaped dolder gold bar with distal extensions | Implant level | 59 | 44 | 1 | 97,7 | 11 | 88 |
Ferrigno et al. [10] | 4, anterior and posterior regions | Some sinus floor | Dolder bar | ND | 120 | 64 | 6 | 86,9 | 16 | 87,5 |
Park et al. [31] | 4, anterior region | No | Hader bar and bar clips | Abutment level | 12 | 64 | 1 | 96.3 | 16 | 100 |