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Table 1 Clinical parameters recorded at baseline (t0), 6 months (t1), and 13 to 18 years (t2) after surgery. (PPD: probing pocket depth; RED: recession depth; CAL: clinical attachment level; WKT: width of keratinized tissue; MV: mean value; SD: standard deviation); *: linear mixed model

From: Root coverage using a connective tissue graft with epithelial striation in combination with enamel matrix derivatives - a long-term retrospective clinical interventional study

  

times of the assessment [MV ± SD]

Significance level / p-value

N

t0

t1

t2

t0 vs. t1 vs. t2*

t0 vs. t1*

t0 vs. t2*

t1 vs. t2*

PPD

25

1.64 ± 0.45

1.50 ± 0.46

1.24 ± 0.61

0.020

0.435

0.016

0.108

RED

25

4.52 ± 1.56

0.36 ± 0.76

0.30 ± 0.60

<  0.001

<  0.001

<  0.001

0.842

CAL

25

6.16 ± 1.62

1.86 ± 0.87

1.54 ± 0.92

<  0.001

<  0.001

<  0.001

0.245

WKT

25

1.18 ± 1.28

3.26 ± 0.98

4.26 ± 1.83

<  0.001

<  0.001

<  0.001

0.007

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