Table 3 Comparison of the Degree of Root Resorption (mm) Between before and after treatment for the Patients in Group II (Conventional Preadjusted Brackets)
Measurements, mm | T1 | T2 | T2-T1 | 95 % CIs | P | |||
|---|---|---|---|---|---|---|---|---|
Mean | SD | Mean | SD | lower | upper | |||
Maxillary central incisor | 12.1 | 1.5 | 11.6 | 1.7 | −0.5 | 0.24 | 0.76 | * |
Maxillary lateral incisor | 11.5 | 1.7 | 11.2 | 1.5 | −0.3 | 0.04 | 0.56 | * |
Mandibular central incisor | 11.3 | 1.8 | 10.9 | 1.6 | −0.4 | 0.14 | 0.66 | * |
Mandibular lateral incisor | 10.9 | 1.8 | 10.6 | 1.9 | −0.3 | 0.17 | 0.43 | * |