Table 5.
Descriptive Statistics and Multiple Comparison Results of Little's Irregularity Index, Intercanine Width and Arch Length According to Group and Time
| Groups |
Time |
Little's Irregularity Index |
Intercanine Width |
Arch Length |
| Group 1 | T0 | 0.041 ± 0.103E | 26.309 ± 1.151 | 58.573 ± 1.892 |
| T1 | 0.268 ± 0.328ABCDE | 26.04 ± 1.206 | 58.47 ± 1.925 | |
| T2 | 0.376 ± 0.448ABCD | 25.989 ± 1.192 | 58.467 ± 1.934 | |
| T3 | 0.451 ± 0.531ABC | 25.945 ± 1.196 | 58.47 ± 1.931 | |
| T4 | 0.555 ± 0.732AB | 25.922 ± 1.177 | 58.445 ± 1.973 | |
| Total | 0.336 ± 0.501X | 26.041 ± 1.178 | 58.485 ± 1.908 | |
| Group 2 | T0 | 0.028 ± 0.069E | 26.326 ± 1.248 | 58.733 ± 2.74 |
| T1 | 0.079 ± 0.164DE | 26.304 ± 1.275 | 58.661 ± 2.732 | |
| T2 | 0.147 ± 0.239CDE | 26.268 ± 1.266 | 58.633 ± 2.733 | |
| T3 | 0.164 ± 0.251CDE | 26.262 ± 1.262 | 58.624 ± 2.727 | |
| T4 | 0.192 ± 0.267CDE | 26.256 ± 1.258 | 58.621 ± 2.724 | |
| Total | 0.122 ± 0.217Y | 26.283 ± 1.247 | 58.655 ± 2.698 | |
| Group 3 | T0 | 0.032 ± 0.092E | 26.154 ± 0.977 | 58.958 ± 3.103 |
| T1 | 0.068 ± 0.152E | 26.133 ± 1.009 | 58.915 ± 3.07 | |
| T2 | 0.091 ± 0.16DE | 26.022 ± 1.076 | 58.897 ± 3.065 | |
| T3 | 0.093 ± 0.164DE | 26.06 ± 1.048 | 58.897 ± 3.065 | |
| T4 | 0.093 ± 0.164DE | 26.06 ± 1.048 | 58.891 ± 3.061 | |
| Total | 0.075 ± 0.149Y | 26.086 ± 1.021 | 58.912 ± 3.035 | |
| Group 4 | T0 | 0.097 ± 0.235DE | 26.391 ± 1.248 | 58.821 ± 2.354 |
| T1 | 0.256 ± 0.273BCDE | 26.216 ± 1.211 | 59.015 ± 2.505 | |
| T2 | 0.437 ± 0.499ABC | 26.015 ± 1.272 | 59.079 ± 2.518 | |
| T3 | 0.545 ± 0.532AB | 25.918 ± 1.267 | 59.173 ± 2.497 | |
| T4 | 0.568 ± 0.53A | 25.906 ± 1.267 | 59.17 ± 2.485 | |
| Total | 0.38 ± 0.465X | 26.089 ± 1.252 | 59.052 ± 2.446 | |
| Total | T0 | 0.049 ± 0.142k | 26.295 ± 1.151 | 58.771 ± 2.536 |
| T1 | 0.168 ± 0.256l | 26.173 ± 1.17 | 58.765 ± 2.571 | |
| T2 | 0.263 ± 0.389m | 26.074 ± 1.196 | 58.769 ± 2.576 | |
| T3 | 0.312 ± 0.442mn | 26.046 ± 1.191 | 58.791 ± 2.572 | |
| T4 | 0.351 ± 0.516n | 26.036 ± 1.186 | 58.782 ± 2.576 | |
| Total | 0.228 ± 0.388 | 26.125 ± 1.179 | 58.776 ± 2.559 |
Values are mean ± SD, k-n: There is no difference between times with the same letter in terms of Little's irregularity index, A-E: There is no difference between group and time interactions with the same letter in terms of Little's irregularity index, X-Y: There is no difference between groups with the same letter in terms of Little's irregularity index. Group 1, Dead-soft retainer; Group 2, Stainless steel retainer; Group 3, Memotain; Group 4, Connected bonding pad.