Table 3.
Comparison of bond failure among four study groups
| Failure pattern | Group A (n = 30) N (%) | Group B (n = 30) N (%) | Group C (n = 30) N (%) | Group D (n = 30) N (%) | P value (Chi square test) |
|---|---|---|---|---|---|
| Tooth Fracture | 0/30 (0%) | 6/30 (20%) | 0/30 (0%) | 7/30 (23.3%) | P = 0.036* |
| Core Fracture | 13/30 (43.3%) | 24/30 (80%) | 15/30 (50%) | 23/30 (75%) | P = 0.17 (NS) |
| Post Debonding | 12/30 (40%) | 0/30 (0%) | 12/30 (40%) | 0/30 (0%) | P = 0.011* |
| Post Fracture | 5/30 (15%) | 0/30 (0%) | 3/30 (10%) | 0/30 (0%) | P = 0.26 (NS) |
P>0.05 - no significant difference (NS);
*
P<0.05 - significant.