Table 3.

Manual procedure, statistical data

Case	1		2		3		4		5
Operator	A	B	A	B	A	B	A	B	A	B
Mean volume (mm3)	428.95	437.68	1651.90	1620.04	871.00	877.79	406.40	408.94	116.49	135.33
Median volume (mm3)	427.78	438.66	1630.17	1619.36	881.79	879.15	404.57	405.16	112.94	134.55
Standard deviation	9.30	2.27	53.46	13.43	19.83	15.99	11.12	8.85	6.20	7.47
CV (%)	2.17	0.52	3.24	0.83	2.28	1.82	2.74	2.16	5.32	5.52

CV, coefficient of variation.