Table 4 Overall Complications occurred from zirconia crown-level data.
Intervals (Months) | Total subjects | Event | Loss to follow-up | Cumulative Complication | Crowns without complications | Error | [95% conf. int.] | |
|---|---|---|---|---|---|---|---|---|
0 | 20 | 562 | 0 | 3 | 0 | 1 | 0 | − |
20 | 40 | 558 | 0 | 16 | 0 | 1 | 0 | − |
40 | 60 | 542 | 0 | 19 | 0 | 1 | 0 | − |
60 | 80 | 523 | 0 | 31 | 0 | 1 | 0 | − |
80 | 100 | 492 | 0 | 23 | 0 | 1 | 0 | − |
100 | 120 | 469 | 0 | 17 | 0 | 1 | 0 | − |
120 | 140 | 452 | 0 | 20 | 0 | 1 | 0 | − |
140 | 160 | 432 | 6 | 47 | 0.0147 | 0.9853 | 0.006 | 0.9676, 0.9934 |
160 | 180 | 379 | 18 | 251 | 0.0847 | 0.9153 | 0.0168 | 0.8755, 0.9428 |
180 | 200 | 110 | 2 | 104 | 0.1162 | 0.8838 | 0.0273 | 0.8174, 0.9271 |
200 | 220 | 4 | 0 | 4 | 0.1162 | 0.8838 | 0.0273 | 0.8174, 0.9271 |
