Cone-Beam Computed Tomography as a Diagnostic Method for Determination of Gingival Thickness and Distance between Gingival Margin and Bone Crest

Table 1

Mean and standard deviation (sd) of gingival thickness (GT) measurements obtained by cone-beam computed tomography (CBCT) imaging, transgingival probing (TP), and the method using ultrasound (US).

Teeth group	Gingival thickness^1 (mm)
	CBCT		TP		US
	Mean ± sd		Mean ± sd		Mean ± sd
Incisors	1.17 ± 0.26^a	116	1.34 ± 0.31^b	116	1.24 ± 0.32^a	58	<0.05
Canines	1.08 ± 0.28^a	58	1.22 ± 0.27^b	58	1.03 ± 0.38^a	58	<0.05
Premolars	1.19 ± 0.48^a	116	1.23 ± 0.37^a	116	1.01 ± 0.43^b	116	<0.05
Molars	1.32 ± 0.54^a	58	1.39 ± 0.42^a	58	1.06 ± 0.36^b	58	<0.05
All the teeth	1.18 ± 0.40^a	348	1.29 ± 0.35^b	348	1.10 ± 0.39^c	348	<0.05

Different letters in the lines indicate significant statistical differences ( < 0.05) by Tamhane’s test.