Clinical Comparison of the Volumetric Changes in Single Pontic Site Development through Connective Tissue Grafting Using Modified Pouch Technique versus Pouch Technique in the Maxillary Esthetic Zone: A Randomized Controlled Clinical Trial

Table 4

Mean and SD values of keratinized tissue thickness (KTT) at 2 mm and 4 mm percentage change (%) within each group at different study periods.

Point	Study Period	Groups		value
		Test	Control
Keratinized tissue thickness at 2 mm	Baseline–3 months	77.08 (±36.85)^A	86.88 (±57.75)^A	0.692 ns
	3 months–6 months	−2.78 (±9.21)^B	−5.92 (±18.27)^B	0.670 ns
	Baseline–6 months	70.42 (±28.14)^A	70.00 (±43.90)^A	0.982 ns
	P value	<0.001	<0.001
Keratinized tissue thickness at 4 mm	Baseline–3 months	138.13 (±52.64)^A	129.17 (±51.95)^A	0.737 ns
	3 months–6 months	−9.93 (±11.07)^B	−5.99 (±9.61)^B	0.460 ns
	Baseline–6 months	115.83 (±61.89)^A	112.50 (±38.06)^A	0.899 ns
	P value	<0.001	<0.001

Means with different superscript letters within the same horizontal row are significantly different ; significant () ns; nonsignificant ()