TABLE 1.

The inter‐observer agreement for height, depth, and width

	Absolute agreement (I.C.C.)		Difference between observers			Technical error of measurement
	Single observer (type I.C.C. 2,1)	Average observer (type I.C.C. 2,2)	Mean	SE	p	TEM	%TEM
height (mm)	0.996	0.998	0.07	0.01	0.000	0.10	0.7%
depth (mm)	0.955	0.977	−0.06	0.07	0.380	0.53	1.8%
width (mm)	0.986	0.993	0.04	0.04	0.324	0.31	0.9%

Abbreviations: I.C.C., intraclass correlation coefficient; T.E.M., technical error of measurement; % T.E.M., relative T.E.M.