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Table 3 Biotype, papilla width (PW), papilla height (PH), gingival recession (GR), recession width (RW) and keratinized tissue (KT) before and after orthodontic treatment

From: Assessment of the effect of the corticotomy-assisted orthodontic treatment on the maxillary periodontal tissue in patients with malocclusions with transverse maxillary deficiency: a case series

Parameter

[mm]

Time of observation [months]

Difference between baseline and 12 months post-op

p-value (Friedman ANOVA)

Mean diff. (95% Cl) between baseline and 12 months post-op

Biotype

x ± SD

Baseline

1.71 ± 0.52

+ 0.32 mm

p < 0.0001

0.07 (0.26, 0.39)

3

1.95 ± 0.54

6

1.89 ± 0.56

9

1.94 ± 0.59

12

2.03 ± 0.47

PW

x ± SD

Baseline

3.75 ± 0.92

−0.21 mm

NS

0.29 (−1.11, −0.53)

3

3.60 ± 1.17

6

3.77 ± 0.95

9

3.80 ± 1.13

12

3.54 ± 1.50

PH

x ± SD

Baseline

4.82 ± 1.16

−0.82 mm

p < 0.0001

0.26 (− 0.47, 0.05)

3

4.16 ± 1.23

6

4.52 ± 0.85

9

4.51 ± 1.14

12

4.00 ± 1.60

GR

x ± SD

Baseline

0.13 ± 0.47

−0.06 mm

NS

0.05 (−0.11, −0.01)

3

0.09 ± 0.39

6

0.08 ± 0.34

9

0.09 ± 0.36

12

0.07 ± 0.32

RW

x ± SD

Baseline

0.21 ± 0.75

−0.11 mm

NS

0.08 (−0.20, −0.03)

3

0.17 ± 0.65

6

0.16 ± 0.66

9

0.14 ± 0.61

12

0.10 ± 0.49

KT

x ± SD

Baseline

5.02 ± 1.79

−0.10 mm

p = 0.0039

0.17 (−0.07, 0.27)

3

5.21 ± 1.65

6

5.08 ± 1.75

9

5.12 ± 1.83

12

5.12 ± 1.78

  1. x ± SD mean values and standard deviation
  2. Mean diff. mean difference
  3. Cl Coinfidence interval