Table 3 Implant survival rate based on the univariate log-rank tests
Variables | Classification | Patients (N) | Implants (N) | SR T1 (%) | SD | SR T2 (%) | SD | SR T5 (%) | SD | ST T5 (m) | SD | 95% CI | P-value | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Age | ≥ 65 | 10 | 31 | 80.6 | 7.1 | 69.1 | 8.7 | 69.1 | 8.7 | 45.3 | 4.1 | 37.2 | 53.4 | 0.113 |
< 65 | 30 | 120 | 89.1 | 2.8 | 86.5 | 3.2 | 83.2 | 3.6 | 51.7 | 1.7 | 48.3 | 55.1 | ||
Gender | Male | 26 | 100 | 89.0 | 3.1 | 85.7 | 3.5 | 83.3 | 3.8 | 51.6 | 1.9 | 47.9 | 55.4 | 0.233 |
Female | 14 | 51 | 84.3 | 5.1 | 82.0 | 5.5 | 71.7 | 7.3 | 47.0 | 3.3 | 40.6 | 53.4 | ||
Smoking | Yes | 26 | 100 | 85.0 | 3.6 | 74.2 | 4.6 | 72.5 | 4.8 | 46.8 | 2.3 | 42.3 | 51.3 | 0.004 |
No | 14 | 51 | 98.0 | 1.9 | 94.1 | 3.3 | 94.1 | 3.3 | 57.0 | 1.7 | 53.6 | 60.3 | ||
Indication | Malignant tumor | 22 | 83 | 88.0 | 3.6 | 81.6 | 4.3 | 78.1 | 4.8 | 49.2 | 2.3 | 44.6 | 53.8 | 0.335 |
Benign tumor or jaw cyst | 5 | 16 | 93.8 | 6.1 | 93.8 | 6.1 | 93.8 | 6.1 | 57.3 | 2.7 | 52.0 | 62.5 | ||
ORN | 9 | 38 | 76.1 | 7.0 | 76.1 | 7.0 | 76.1 | 7.0 | 48.2 | 3.5 | 41.4 | 55.1 | ||
Trauma | 4 | 14 | 91.7 | 8.0 | 91.7 | 8.0 | 91.7 | 8.0 | 56.6 | 3.3 | 50.2 | 63.0 | ||
Site of implants | Mandible | 35 | 130 | 86.2 | 3.0 | 80.0 | 3.6 | 78.9 | 3.7 | 49.6 | 1.8 | 46.0 | 53.2 | 0.257 |
Maxilla | 5 | 21 | 95.2 | 4.6 | 89.6 | 7.0 | 89.6 | 7.0 | 55.7 | 2.9 | 50.1 | 61.3 | ||
Flap type | VFF | 31 | 131 | 86.3 | 3.0 | 79.5 | 3.6 | 78.5 | 3.7 | 49.4 | 1.8 | 45.9 | 53.0 | 0.133 |
VIF/VOSF | 9 | 20 | 95.0 | 4.9 | 95.0 | 4.9 | 95.0 | 4.9 | 35.0 | 1.0 | 33.1 | 36.9 | ||
IF | Received | 15 | 53 | 75.3 | 5.9 | 66.7 | 6.7 | 66.7 | 6.7 | 43.2 | 3.4 | 36.6 | 49.8 | 0.001 |
Not received | 25 | 98 | 93.9 | 2.4 | 89.0 | 3.3 | 87.6 | 3.5 | 54.3 | 1.6 | 51.1 | 57.5 | ||
DIIS | I stage | 10 | 35 | 80.0 | 6.8 | 66.1 | 8.5 | 66.1 | 8.5 | 52.5 | 1.7 | 49.1 | 55.8 | 0.019 |
II stage | 30 | 116 | 90.5 | 2.7 | 85.4 | 3.4 | 84.2 | 3.6 | 43.0 | 4.2 | 34.7 | 51.3 | ||
Oral hygiene | Good | 27 | 110 | 96.4 | 1.8 | 95.3 | 2.1 | 93.9 | 2.4 | 57.2 | 1.1 | 55.0 | 59.4 | 0.000 |
Poor | 13 | 41 | 65.9 | 7.4 | 45.8 | 7.8 | 45.8 | 7.8 | 33.1 | 4.0 | 25.3 | 40.8 | ||
Flap complication | Present | 12 | 45 | 82.2 | 5.7 | 71.1 | 6.8 | 71.1 | 6.8 | 45.6 | 3.4 | 38.9 | 52.2 | 0.057 |
Absent | 28 | 106 | 90.6 | 2.8 | 85.6 | 3.6 | 84.0 | 3.9 | 52.4 | 1.8 | 48.9 | 56.0 | ||
Implant location | Grafted bone | 32 | 133 | 87.2 | 2.9 | 79.5 | 3.6 | 79.5 | 3.6 | 49.9 | 1.8 | 46.4 | 53.4 | 0.382 |
Native bone | 8 | 18 | 94.4 | 5.4 | 94.4 | 5.4 | 86.6 | 9.0 | 54.6 | 3.6 | 47.4 | 61.7 | ||
Systemic disease | Present | 8 | 34 | 82.4 | 6.5 | 68.9 | 8.2 | 68.9 | 8.2 | 44.5 | 4.1 | 36.4 | 52.6 | 0.052 |
Absent | 32 | 117 | 89.7 | 2.8 | 84.9 | 3.4 | 83.7 | 3.6 | 52.2 | 1.7 | 48.8 | 55.5 | ||
Implant length | > 8 mm | 34 | 122 | 88.5 | 2.9 | 82.7 | 3.5 | 81.5 | 3.7 | 50.9 | 1.8 | 47.4 | 54.5 | 0.484 |
≤ 8 mm | 6 | 29 | 86.2 | 6.4 | 75.6 | 8.0 | 75.6 | 8.0 | 48.3 | 3.9 | 40.7 | 55.9 | ||