Table 3 Change in alveolar bone thickness and height after treatment.

From: Architectural changes in alveolar bone for dental decompensation before surgery in Class III patients with differing facial divergence: a CBCT study

Measurement

Overall (N = 29)

p valuea

Median (IQR)

p valueb

Low-angle (N = 8)

Normal-angle (N = 11)

High-angle (N = 10)

Central incisor

D_BT

0.22 (1.09)

0.050

1.31 (1.33)

0.00 (1.07)

0.11 (0.52)

NS

D_LT

− 1.25 (1.23)

 < 0.001

− 1.70 (1.80)

− 0.87 (1.50)

− 1.17 (0.91)

NS

D_TT

− 0.76 (0.87)

 < 0.001

− 0.46 (1.30)

− 0.62 (0.90)

− 0.87 (0.56)

NS

D_BH

− 2.70 (0.45)

 < 0.001

− 1.93 (4.11)

− 3.20 (5.30)

− 2.38 (2.85)

NS

D_LH

− 1.0 (2.95)

0.003

− 1.93 (3.81)

− 1.00 (4.70)

− 0.98 (2.85)

NS

D_crown

1.35 (2.05)

 < 0.001

1.53 (2.00)

1.00 (3.85)

1.33 (2.48)

NS

D_proclination

7.74 (6.05)

 < 0.001

9.31 (5.06)

9.38 (5.58)

8.36 (7.54)

NS

Lateral incisor

D_BT

0.41 (1.03)

0.001

1.08 (1.11)

0.44 (1.09)

0.33 (0.55)

NS

D_LT

− 1.07 (1.13)

 < 0.001

− 1.33 (1.75)

− 0.55 (1.69)

− 0.58 (1.04)

NS

D-TT

− 0.28 (0.94)

 < 0.001

− 0.10 (1.57)

− 0.54 (0.96)

− 0.23 (0.34)

NS

D_BH

− 3.45 (3.50)

 < 0.001

− 1.08 (2.95)

− 3.70 (1.70)

− 3.85 (3.25)

NS

D_LH

− 1.35 (4.08)

0.001

− 0.85 (3.44)

− 2.43 (3.35)

0.40 (5.45)

NS

D_crown

0.95 (1.96)

 < 0.001

1.20 (1.18)

1.55 (3.60)

0.65 (2.20)

NS

D_proclination

6.04 (6.03)

 < 0.001

6.43 (3.76)

5.90 (9.98)

5.02 (7.47)

NS

Canine

D_BT

0.66 (0.88)

0.006

0.97 (0.95)#

0.29 (0.62)

0.08 (0.47)

0.009

D_LT

− 0.85 (0.91)

 < 0.001

− 1.55 (1.22)

− 1.04 (1.15)

− 0.76 (0.67)

NS

D_TT

− 0.21 (0.93)

0.010

− 0.08 (1.56)

− 0.32 (1.12)

− 0.28 (0.64)

NS

D_BH

− 0.60 (3.30)

0.002

− 0.20 (2.61)

− 0.60 (7.85)

− 1.25 (3.50)

NS

D_LH

− 1.28 (2.51)

 < 0.001

− 0.83 (1.44)

− 1.45 (5.20)

− 1.65 (2.45)

NS

D_crown

0.75 (2.35)

0.030

0.80(1.61)

1.55 (2.70)

0.18 (1.68)

NS

D_proclination

5.97 (6.43)

 < 0.001

5.37 (5.65)

7.05 (10.05)

5.14 (6.34)

NS

  1. D_BT, difference in buccal thickness; D_LT, difference in lingual thickness; D_TT, difference in total thickness; D_BH, difference in buccal height; D_LH, difference in lingual height, IQR, inter-quartile range; NS, non-significant in post-hoc inter-group comparison.
  2. aWilcoxon signed-rank test.
  3. bKruskal–Wallis test.
  4. #Significant difference between low-angle and high-angle groups.
  5. Statistically significant items are indicated in bold.
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