Table 2 Angle and change of canine axis of non-cleft side and cleft side at T1 and T2.

From: Pilot study of factors contributing to canine impaction after secondary alveolar bone grafting in unilateral cleft lip and palate patients

 

Non-cleft side

Cleft side

Erupted

Impacted

Significance

Erupted

Impacted

Significance

∠θ1

T1 (°)

69.3

69.83

0.91

71.99

59.84

0.0001

SD

14.61

6.8

 

7.59

4.61

 

T2 (°)

68.74

70.3

0.73

67.89

57.8

0.0001

SD

13.09

6.72

 

7.62

3.99

 

Difference (°)

 − 0.56

0.46

0.59

 − 4.1

 − 2.03

0.37

SD

5.43

3.06

 

6.51

6.51

 

∠θ2

T1 (°)

15.88

17.63

0.59

11.32

20.49

0.03

SD

8.86

8.19

 

9.37

9.67

 

T2 (°)

16.33

17.59

0.73

13.94

20.08

0.03

SD

10.02

8.56

 

7.43

8.15

 

Difference (°)

0.45

 − 0.04

0.77

2.61

 − 0.41

0.15

SD

5.02

2.63

 

6.1

1.91

 

∠θ3

T1 (°)

 − 4.54

 − 2.49

0.68

9.54

15.59

0.09

SD

14.11

8.51

 

8.44

13.12

 

T2 (°)

 − 2.59

0.86

0.47

14.51

20.23

0.11

SD

13.73

7.44

 

8.5

12.41

 

Difference (°)

1.95

3.36

0.55

4.97

4.63

0.88

SD

6.72

4.11

 

6.46

4.2

 
  1. ∠θ1, ∠θ2, and ∠θ3 are the minimum angles between the virtual tooth axis and the XY, XZ, and YZ planes, respectively.
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