Clinical efficacy of intraoral ultrasonography versus transgingival probing for measurement of gingival thickness in different gingival biotypes: a clinical trial

Table 2 Measures of central dispersion for the measured GT (Gingival Thickness) by the two methods at 2- and 4-mm distances from the FGM (Free Gingival Margin) in thin and thick biotype groups

Gingival thickness		Ultrasonography 2 mm	Transgingival probing 2 mm	Ultrasonography 4 mm	Transgingival probing 4 mm	Diff 2 mm	Diff 4 mm	Ultrasonography 2 mm	Transgingival probing 2 mm
Thin biotype	Mean	1.2683	1.3531	1.3637	1.2397	0.1983	0.2330	1.2683	1.3531
	Number	394	394	394	394	394	394	394	394
	Standard deviation	0.20989	0.23372	0.26887	0.16160	0.15443	0.18941	0.20989	0.23372
	Minimum	0.70	0.77	0.70	0.76	0.00	0.00	0.70	0.77
	Maximum	2.10	2.22	2.50	1.49	0.82	1.20	2.10	2.22
Thick biotype	Mean	1.4115	1.5477	1.5755	1.6629	0.2255	0.2262	1.4115	1.5477
	Number	286	286	286	286	286	286	286	286
	Standard deviation	0.24331	0.25158	0.25401	0.14601	0.15539	0.15332	0.24331	0.25158
	Minimum	0.90	0.91	1.00	1.50	0.00	0.00	0.90	0.91
	Maximum	2.20	2.23	2.50	2.38	1.10	0.83	2.20	2.23

ISSN: 1746-160X