Variables | Anatomical C/I ratio ≥ 2 | Anatomical C/I ratio < 2 | P-value | |
---|---|---|---|---|
Baseline sample characteristics | ||||
n | 18 | 55 | ||
Male/female | 10/8 | 24/31 | 0.379 | |
Age(y, mean ± SD) | 54.39 ± 8.65 | 52.40 ± 12.94 | 0.550 | |
Diabetes (n) | 0 | 3 | 0.570 | |
Smoking (n) | 3 | 8 | > 0.99 | |
Baseline implant characteristics | ||||
n | 31 | 86 | ||
GBR (n) | 1 | 2 | > 0.99 | |
Follow-up (m, mean ± SD) | 35.03 ± 12.49 | 36.66 ± 9.51 | 0.457 | |
Anatomical C/I ratio (mean ± SD) | 2.33 ± 0.27 | 1.58 ± 0.29 | < 0.001* | |
Localization | PM maxilla (n) | 3 | 22 | 0.064 |
PM mandible (n) | 0 | 3 | 0.564 | |
M maxilla (n) | 19 | 27 | 0.003* | |
M mandible (n) | 9 | 34 | 0.298 | |
Crown | full monolithic zirconia (n) | 29 | 84 | 0.612 |
Porcelain (n) | 2 | 2 | ||
Antagonist type | Natural teeth (n) | 25 | 78 | 0.248 |
Implant (n) | 4 | 5 | 0.381 | |
Removable (n) | 1 | 1 | 0.461 | |
others (n) | 1 | 2 | > 0.99 | |
Outcome characteristics | ||||
Peri-implant probing depth (mm, mean ± SD) | 3.73 ± 1.18 | 2.90 ± 0.71 | 0.001* | |
Peri-implant bleeding index | 1.29 ± 0.93 | 0.90 ± 0.93 | 0.036* | |
Peri-implant plaque index | 0.73 ± 0.63 | 0.67 ± 0.53 | 0.825 | |
Width of keratinized tissue | 3.42 ± 1.89 | 3.24 ± 1.37 | 0.639 | |
Marginal bone level Changes (mm, mean ± SD) | 0.24 ± 0.99 | 0.30 ± 0.97 | 0.848 | |
\({\varvec{\Delta}}\) GSV M (grey, mean ± SD) | 5.10 ± 13.51 | 1.43 ± 12.84 | 0.295 | |
\({\varvec{\Delta}}\) GSV A (grey, mean ± SD) | -1.70 ± 15.21 | -4.93 ± 16.89 | 0.494 | |
Peri-implantitis (n, %) | 1 (3.2%) | 1 (1.2%) | 0.461 | |
Peri-implant mucositis (n, %) | 23 (74.2%) | 53 (61.6%) | 0.209 |