Table 3.
Inter- and intra-group distribution of intrusion at U6 to PP distance.
| U6 to PP distance (mm) | Group 1 (n = 15) Mean ± SD |
Group 2 (n = 15) Mean ± SD |
Inter-group comparison (P-value for unpaired ‘t’ test) |
|---|---|---|---|
| Pre-intrusion | 20.1 ± 1.1 | 19.1 ± 1.1 | 0.018 (S) |
| Post-intrusion | 21.1 ± 1.2 | 20.3 ± 1.1 | 0.087 (NS) |
| Amount of change (Pre–Post) | 0.97 ± 0.40 | 1.20 ± 0.32 | 0.087 (NS) |
| Intra-group comparison (P-value for paired ‘t’ test) Pre v/s Post |
0.001 (S) | 0.001 (S) |
P-value < 0.05 is considered to be statistically significant. S: Significant, NS: Non-Significant.