[Table/Fig-4]:

Clinical parameters from baseline to 1 month, 3 months,6 months for Group II* Significant difference; p<0.05 wilcoxon signed rank test

Group II (Chorion membrane)
Length of recession		Width of recession		Width of keratinized gingiva
Difference	p-value	Difference	p-value	Difference	p-value
2.00±0.43	0.001*	1.75±0.75	0.002*	1.17±0.38	0.001*
2.00±0.43	0.001*	2.33±1.15	0.002*	1.00±1.15	0.001*
2.00±0.85	0.002*	2.50±1.17	0.002*	1.00±0.51	0.001*