BMC Medical Imaging

Table 4 Comparison of the distance measurements and diameter of ACs on the right and left side according to age groups

From: Assessment of Canalis Sinuosus located in maxillary anterior region by using cone beam computed tomography: a retrospective study

	Age groups	Right			Left
	Age groups	n	Mean ± SD	p value	n	Mean ± SD	p value
ACs-NCF	< 20	26	10.55 ± 4.02	0.273^a	24	11.83 ± 4.07	0.983^a
	20–29	59	11.68 ± 3.83		57	11.72 ± 4.16
	30–39	61	11.77 ± 3.68		65	11.96 ± 3.77
	40–59	114	12.22 ± 3.33		111	11.68 ± 4.32
	≥ 60	32	12.25 ± 3.64		34	12.11 ± 4.37
ACs-AR	< 20	26	7.51 ± 2.79	0.311^b	24	7.85 ± 3.37	0.293^b
	20–29	59	8.30 ± 3.30		57	8.32 ± 3.92
	30–39	61	8.09 ± 3.14		65	8.57 ± 3.95
	40–59	114	7.55 ± 3.21		111	7.64 ± 3.69
	≥ 60	32	7.20 ± 3.71		34	7.07 ± 3.79
ACs-BCM	< 20	26	4.71 ± 2.32	0.320^a	24	5.23 ± 1.79	0.268^b
	20–29	59	4.46 ± 1.70		57	5.09 ± 2.03
	30–39	61	4.40 ± 1.62		65	4.51 ± 1.60
	40–59	114	4.84 ± 1.60		111	4.61 ± 1.60
	≥ 60	32	4.30 ± 1.47		34	4.65 ± 1.88
CS ≥ 1 mm	< 20	22	1.24 ± 0.15	0.357^b	21	1.27 ± 0.17	0.415^b
	20–29	48	1.30 ± 0.17		51	1.31 ± 0.17
	30–39	53	1.33 ± 0.21		59	1.31 ± 0.17
	40–59	104	1.32 ± 0.19		99	1.27 ± 0.16
	≥ 60	26	1.34 ± 0.21		32	1.31 ± 0.16

^a one way ANOVA test, ^b Kruskal Wallis H test

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