Table 2 Treatment-induced and post-treatment changes (Group 1: Residual overjet group; Group 2: Normal overjet group)
Study model-based measurements | Pre-treatment (T0) | Debond (T1) | Orthodontic correction (T1–T0) | 12 months post-treatment (T2) | Post-treatment changes (T2–T1) | Post-treatment changes (T2–T1) as % of orthodontic correction | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Group 1 (n = 42) | Group 2 (n = 40) | Group 1 (n = 42) | Group 2 (n = 40) | Group 1 (n = 42) | Group 2 (n = 40) | Group 1 (n = 42) | Group 2 (n = 40) | Group 1 (n = 42) | Group 2 (n = 40) | Group 1 (n = 42) | Group 2 (n = 40) | |||
Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean | Mean (%) | |||||||||
(SD) | % | (SD) | % | |||||||||||
OAI score | 17.95 (5.31) | 15.58 (4.98) | 3.83 (2.76) | 3.68 (2.43) | − 14.12 (5.73) | − 11.90 (5.73) | 4.71 (3.59) | 4.95 (3.04) | 0.88 (3.03) | 23 | 1.28 (2.70) | 35 | 6 | 11 |
LII (mm) | 10.84 (6.97) | 8.94 (5.4) | 2.67 (0.91) | 2.49 (1.23) | − 8.17 (7.11) | − 6.45 (5.36) | 3.13 (1.19) | 3.01 (1.19) | 0.47 (1.19) | 17 | 0.52 (1.04) | 21 | 6 | 8 |
Overjet (mm) | 4.96 (3.20) | 4.35 (2.54) | 4.99 (0.84) | 3.12 (0.56) | 0.03 (3.24) | − 1.23 (2.64) | 4.86 (1.09) | 3.28 (0.89) | − 0.13 (0.89) | − 3 | 0.16 (0.76) | 5 | 473 | 13 |