. 2020 Apr 18;52(2):339–345. [Article in Chinese] doi: 10.19723/j.issn.1671-167X.2020.02.023

1.

不同牙龈生物型的牙龈厚度(x±s)

Gingival thickness of different gingival biotypex±s/mm

Gingival biotype	n	Rec	PD	WKT	GTDM
Rec, recession depth; PD, probing depth; WKT, width of keratinized tissue; GTDM, gingival thickness of direct measurement. a, results of independent-samples t test; b, results of Mann-Whitney U test; c, calibration of independent sample t test.
Thick	55	2.46±1.00	1.60±0.56	3.11±1.66	1.38±0.42
Thin	57	2.44±0.99	1.58±0.53	2.69±1.50	0.97±0.30
P		0.895^a	0.839^a	0.233^b	<0.001^c