Research Article
Orthodontic Tooth Movement with Clear Aligners
Table 3
Descriptive statistics and correlations between CBCT measurements and model-based tooth movement (, weekly aligner group).
| | Variable | Mean | SD | Min | Max | Spearman correlation | value | | with model tooth movement |
| | Age |
25.50
|
4.80
|
20.50
|
35.90
|
−0.46
|
0.08
| | (x) |
1.56
|
0.38
|
0.80
|
2.02
|
0.90
| <0.0001 | | (s) |
1.63
|
0.40
|
0.80
|
2.09
|
0.86
| <0.0001 | | Apex |
−0.73
|
0.26
|
−1.32
|
−0.39
|
−0.72
|
0.0023
| | Tooth length |
24.87
|
2.02
|
21.67
|
30.32
|
−0.42
|
0.12
| | Crown length |
12.27
|
0.74
|
10.84
|
13.27
|
−0.17
|
0.55
| | Root length |
12.60
|
1.74
|
10.56
|
17.74
|
−0.40
|
0.14
| | Crown/root ratio |
0.99
|
0.12
|
0.71
|
1.23
|
0.12
|
0.67
| | Bone to C-rot |
5.14
|
1.25
|
2.89
|
7.70
|
−0.10
|
0.72
| | (o) |
−0.28
|
0.16
|
−0.52
|
0.00
|
0.25
|
0.38
| | (t) |
1.85
|
0.36
|
1.08
|
2.40
|
0.70
|
0.0036
| | Fractal dimension |
1.71
|
0.20
|
1.37
|
2.00
|
0.25
|
0.36
|
|
|
