Assessing the Correlation between Skeletal and Corresponding Soft-Tissue Equivalents to Determine the Relationship between CBCT Skeletal/Dental Dimensions and 3D Radiographic Soft-Tissue Equivalents

Table 4

Intraclass correlation coefficients (ICC) of facial scan landmarks, lower and upper limits of their 95% confidence intervals, and their corresponding values.

	Landmarks	Intraclass correlation coefficient	95% confidence intervals of soft tissue ICC		value
			Lower	Upper
1	Width of nose	0.960	0.883	0.989	0.001
2	Left canine to left outer eye	0.965	0.900	0.991	0.001
3	Right canine to right outer eye	0.990	0.970	0.997	0.001
4	Gnathion to throat	0.999	0.997	1.000	0.001
5	Gnathion to left gonion	0.999	0.998	1.000	0.001
6	Gnathion to right gonion	0.999	0.998	1.000	0.001
7	Left canine to left cheekbone	0.947	0.846	0.986	0.001
8	Right canine to right cheekbone	0.971	0.918	0.992	0.001
9	Nasion to gnathion	1.000	0.999	1.000	0.001
10	Gnathion to left external auditory meatus (EAM)	1.000	0.999	1.000	0.001
11	Gnathion to right EAM	1.000	0.999	1.000	0.001
12	Corners of mouth	0.974	0.925	0.993	0.001
13	Left EAM to left corner eye	0.971	0.914	0.992	0.001
14	Right EAM to right corner eye	0.972	0.921	0.992	0.001
15	Bottom of nose to nasion	0.989	0.968	0.997	0.001
16	Width of left eye	0.847	0.539	0.959	0.001
17	Width of right eye	0.875	0.643	0.966	0.001
18	Left inner eye to left canine	0.993	0.979	0.998	0.001
19	Right inner eye to right canine	0.993	0.980	0.998	0.001
20	Left gonion to left EAM	0.994	0.983	0.998	0.001
21	Right gonion to right EAM	0.991	0.974	0.998	0.001
22	Bottom of nose to left EAM	0.998	0.994	0.999	0.001
23	Bottom of nose to right EAM	0.996	0.990	0.999	0.001
24	Left corner of mouth to left EAM	0.996	0.990	0.999	0.001
25	Right corner of mouth to right EAM	0.996	0.989	0.999	0.001
26	Width between outer eye corners	0.989	0.968	0.997	0.001
27	Left corner of mouth to left gonion	0.982	0.950	0.995	0.001
28	Right corner of mouth to right gonion	0.992	0.978	0.998	0.001
29	Bottom of nose to left gonion	0.994	0.982	0.998	0.001
30	Bottom of nose to right gonion	0.991	0.975	0.998	0.001