Table 2.
Descriptive data regarding UMICs with LIRR and without LIRR
| LIRR | No-LIRR | X2 | P value | |
|---|---|---|---|---|
| Age (mean ± SD) | 16.76 ± 4.07 | 16.29 ± 4.03 | - | 0.39 |
| Gender | 0.60 | 0.48 | ||
| Female | 44(23.8%) | 141(76.2%) | ||
| Male | 24(20.0%) | 96(80.0%) | ||
| Affected side | 0.30 | 0.68 | ||
| Right | 43(25%) | 129(75%) | ||
| Left | 35(21.2%) | 130(78.8%) | ||
| Canine crown position | 10.20 | 0.006** | ||
| Palatal | 34(29.1%) | 83(70.9%) | ||
| Buccal | 19(13.9%) | 118(86.1%) | ||
| Midalveolus | 15(29.4%) | 36(70.6%) | ||
| Mesiodistal location | 20.85 | < 0.001*** | ||
| S1 | 89(87.9%) | 12(12.1%) | ||
| S2 | 38(84.4%) | 7(15.6%) | ||
| S3 | 62(73.8%) | 22(26.2%) | ||
| S4 | 19(52.8%) | 17(47.2%) | ||
| S5 | 31(75.6%) | 10(24.4%) |
Chi-square tests between LIRR and No-LIRR. UMICs indicates unilateral maxillary impacted canines, LIRR Lateral incisor root resorption, SD Standard deviation
**, P < .01
***, P < .001