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Table 6 Angle correlated indicators in anterior teeth in different angle groups

From: Analysis of the sagittal root angle and its correlation with hard and soft tissue indices in anterior teeth for immediate implant evaluation: a retrospective study

Angle groups

C-2 Buccal bone thickness

C-6 Buccal bone thickness

C-4 Palatal bone thickness

C-6 Palatal bone thickness

R-0 Buccal bone thickness

R-2 Buccal bone thickness

 < 0°

0.86 ± 0.45

0.86 ± 0.27

1.50 ± 0.54

1.70 ± 0.64

3.02 ± 0.71

1.53 ± 0.55

 ≥ 0° < 5°

0.51 ± 0.58

1.20 ± 0.54

1.61 ± 0.67

2.03 ± 0.91

2.98 ± 1.01

1.57 ± 0.95

 ≥ 5° < 10°

0.59 ± 0.58

1.00 ± 0.44

1.64 ± 0.62

2.25 ± 0.82

2.45 ± 0.76

1.19 ± 0.61

 ≥ 10° < 15°

0.65 ± 0.59

1.01 ± 0.36

1.68 ± 0.63

2.39 ± 0.82

2.12 ± 0.59

0.98 ± 0.38

 ≥ 15° < 20°

0.60 ± 0.67

1.03 ± 0.39

1.76 ± 0.69

2.66 ± 0.88

1.92 ± 0.66

0.94 ± 0.39

 ≥ 20° < 25°

0.50 ± 0.61

1.00 ± 0.39

2.02 ± 0.80

3.13 ± 1.15

1.70 ± 0.56

0.89 ± 0.34

 ≥ 25° < 30°

0.37 ± 0.54

0.95 ± 0.34

2.16 ± 0.75

3.46 ± 1.19

1.41 ± 0.54

0.81 ± 0.24

 ≥ 30°

0.52 ± 0.69

0.94 ± 0.40

2.41 ± 1.04

4.29 ± 1.52

1.40 ± 0.65

0.97 ± 0.41

Overall

0.56 ± 0.62

1.01 ± 0.39

1.84 ± 0.75

2.77 ± 1.13

1.97 ± 0.76

0.99 ± 0.47

Angle groups

R-4 Buccal bone thickness

R-0 Palatal bone thickness

R-2 Palatal bone thickness

R-4 Palatal bone thickness

TA-Apex to Plate

BA-Apex to Plate

 < 0°

1.00 ± 0.34

3.94 ± 1.04

2.16 ± 0.71

1.96 ± 0.78

8.44 ± 4.48

8.04 ± 4.39

 ≥ 0° < 5°

1.29 ± 0.56

4.43 ± 1.29

3.09 ± 1.03

2.32 ± 0.87

9.89 ± 4.22

9.58 ± 4.33

 ≥ 5° < 10°

1.02 ± 0.46

5.12 ± 1.46

3.55 ± 1.25

2.67 ± 1.15

10.13 ± 2.85

10.42 ± 3.43

 ≥ 10° < 15°

0.92 ± 0.34

6.05 ± 1.69

4.18 ± 1.46

3.10 ± 1.20

9.38 ± 3.14

10.09 ± 3.88

 ≥ 15° < 20°

0.93 ± 0.37

6.86 ± 1.85

4.72 ± 1.53

3.51 ± 1.26

8.31 ± 3.65

10.68 ± 3.66

 ≥ 20° < 25°

0.89 ± 0.32

8.13 ± 2.30

5.58 ± 2.00

4.11 ± 1.68

6.40 ± 3.62

10.85 ± 4.30

 ≥ 25° < 30°

0.86 ± 0.30

8.77 ± 2.17

6.20 ± 1.97

4.43 ± 1.59

4.64 ± 3.99

12.17 ± 3.99

 ≥ 30°

1.01 ± 0.41

10.29 ± 2.74

6.93 ± 2.38

4.73 ± 1.84

2.90 ± 3.02

13.98 ± 4.35

Overall

0.95 ± 0.38

6.93 ± 2.42

4.78 ± 1.94

3.51 ± 1.52

7.85 ± 4.03

10.80 ± 4.04