Case Control Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Clin Cases. Oct 16, 2014; 2(10): 534-540
Published online Oct 16, 2014. doi: 10.12998/wjcc.v2.i10.534
Table 4 Comparison of clinical parameters from pre-operative to 6 mo post-operative period between the three groups using Kruskal Wallis test1
Clinical parameterGroup IGroup IIGroup IIIχ2P-value (significance)
Recession height0.2 ± 0.480.5 ± 0.781.77 ± 0.7347.56< 0.001b (S)
Recession width0.23 ± 0.771.07 ± 0.582.23 ± 0.8251.28< 0.001b (S)
Probing pocket depth0.4 ± 0.49-0.17 ± 0.530.23 ± 0.6813.29< 0.001b (S)
Clinical attachment level0.5 ± 0.730.33 ± 0.961.97 ± 0.8142.01< 0.001b (S)
Thickness of keratinized tissue-0.13 ± 0.12-0.23 ± 0.15-0.41 ± 0.2722.86< 0.001b (S)
Width of attached gingiva-0.27 ± 0.52- 0.53 ± 0.68-0.73 ± 0.987.030.03 (NS)