Table 4 Frequency of cortical bone perforation, for both prosthetically- and bone-driven positions, and the implant-line A angle (ILAA)
From: Immediate implant placement in the anterior mandible: a cone beam computed tomography study
Tooth | Prosthetically driven | ILAA | Bone driven | ||||
|---|---|---|---|---|---|---|---|
No perforation | < 2 mm | Perforation | No perforation | < 2 mm | Perforation | ||
n (%) | mean ± SD (min, max) | n (%) | |||||
43 | 15 (6.3) | 179 (74.9) | 45 (18.8) | 11.0 ± 6.7 (0.4, 25.6) | 85 (35.6) | 153 (64.0) | 1 (0.4) |
42 | 8 (3.3) | 205 (85.8) | 26 (10.9) | 9.2 ± 5.8 (3.3, 24.8) | 56 (23.4) | 182 (76.2) | 1 (0.4) |
41 | 2 (0.8) | 208 (87.0) | 29 (12.1) | 15.6 ± 8.8 (4.2, 26.8) | 19 (7.9) | 219 (91.6) | 1 (0.4) |
31 | 1 (0.4) | 206 (86.2) | 32 (13.4) | 14.8 ± 8.6 (5.6, 24.9) | 18 (7.5) | 221 (92.5) | 0 (0.0) |
32 | 11 (4.6) | 207 (86.6) | 21 (8.8) | 9.1 ± 3.9 (3.6, 20.4) | 55 (23.0) | 184 (77.0) | 0 (0.0) |
33 | 10 (4.2) | 184 (77.0) | 45 (18.8) | 9.7 ± 5.5 (0.5, 23.5) | 85 (35.76 | 154 (64.4) | 0 (0.0) |
Total | 47 (3.3) | 1,189 (82.9) | 198 (13.8) | 10.5 ± 6.2 (0.4, 26.8) | 318 (22.2) | 1,113 (77.6) | 3 (0.2) |