Variables | BO CBCT | AO CBCT | Changed | p—value |
---|---|---|---|---|
Average(mm) \(\pm\) SD | Average(mm) \(\pm\) SD | Average(mm) | ||
Sex | ||||
Male (n = 39) | 2.40 \(\pm\) 1.39 | 2.62 \(\pm\) 1.57 | 0.22 | 0.218 |
Female (n = 76) | 2.57 \(\pm\) 1.55 | 2.30 \(\pm\) 1.28 | -0.27 | 0.036 |
Age | ||||
10 – 19 (n = 23) | 3.01 \(\pm\) 2.03 | 2.66 \(\pm\) 1.73 | -0.35 | 0.264 |
20 – 29 (n = 63) | 2.44 \(\pm\) 1.38 | 2.28 \(\pm\) 1.27 | -0.16 | 0.251 |
30 – 39 (n = 21) | 2.03 \(\pm\) 0.84 | 2.23 \(\pm\) 1.21 | 0.20 | 0.262 |
\(\ge\) 40 (n = 8) | 2.94 \(\pm\) 1.44 | 3.20 \(\pm\) 1.48 | 0.25 | 0.203 |
Orthodontic treatment period (Months) | ||||
0 – 24 (n = 26) | 2.54 \(\pm\) 1.58 | 2.37 \(\pm\) 1.26 | -0.16 | 0.430 |
24 – 36 (n = 41) | 2.76 \(\pm\) 1.61 | 2.58 \(\pm\) 1.45 | -0.18 | 0.211 |
36 – 48 (n = 18) | 1.93 \(\pm\) 0.81 | 2.24 \(\pm\) 1.52 | 0.31 | 0.210 |
\(\ge\) 48- (n = 30) | 2.52 \(\pm\) 1.52 | 2.31 \(\pm\) 1.36 | -0.21 | 0.451 |
CBCT interval (Months) | ||||
12 – 24 (n = 19) | 2.49 \(\pm\) 1.57 | 2.59 \(\pm\) 1.38 | 0.10 | 0.575 |
24 – 36 (n = 36) | 2.67 \(\pm\) 1.71 | 2.47 \(\pm\) 1.50 | -0.20 | 0.160 |
36 – 48 (n = 26) | 2.43 \(\pm\) 1.36 | 2.08 \(\pm\) 1.45 | -0.34 | 0.205 |
48 – 60 (n = 9) | 2.06 \(\pm\) 1.03 | 2.70 \(\pm\) 1.49 | 0.64 | 0.112 |
60 – 72 (n = 10) | 2.03 \(\pm\) 0.86 | 1.97 \(\pm\) 0.89 | -0.07 | 0.850 |
\(\ge\) 72 (n = 15) | 2.94 \(\pm\) 1.63 | 2.74 \(\pm\) 1.20 | -0.21 | 0.639 |
Type of tooth | ||||
Anterior (n = 37) | 2.55 \(\pm\) 1.20 | 2.44 \(\pm\) 1.35 | -0.10 | 0.592 |
Premolar (n = 11) | 2.22 \(\pm\) 1.24 | 1.89 \(\pm\) 1.76 | -0.33 | 0.178 |
Molar (n = 56) | 2.61 \(\pm\) 1.76 | 2.60 \(\pm\) 1.53 | -0.02 | 0.901 |
Position of tooth | ||||
Maxillary (n = 71) | 2.54 \(\pm\) 1.43 | 2.29 \(\pm\) 1.33 | -0.25 | 0.040 |
Mandibular (n = 44) | 2.47 \(\pm\) 1.60 | 2.60 \(\pm\) 1.46 | 0.13 | 0.504 |
Canal obturation quality | ||||
Good (n = 75) | 2.59 \(\pm\) 1.71 | 2.50 \(\pm\) 1.53 | -0.08 | 0.561 |
Moderate (n = 18) | 2.58 \(\pm\) 1.16 | 2.40 \(\pm\) 1.56 | -0.18 | 0.459 |
Poor (n = 18) | 2.32 \(\pm\) 0.73 | 2.32 \(\pm\) 1.35 | -0.00 | 0.995 |
No canal obturation (n = 4) | 2.03 \(\pm\) 0.85 | 2.05 \(\pm\) 1.07 | 0.02 | 0.889 |
Whether used as an anchor | ||||
Yes (n = 30) | 2.37 \(\pm\) 1.31 | 2.26 \(\pm\) 1.18 | -0.11 | 0.584 |
No (n = 80) | 2.58 \(\pm\) 1.59 | 2.44 \(\pm\) 1.46 | -0.15 | 0.251 |
Unknown (n = 5) | 2.27 \(\pm\) 0.75 | 2.83 \(\pm\) 1.48 | 0.56 | 0.418 |