. 2011 Feb;40(2):67–75. doi: 10.1259/dmfr/27546065

Table 4. Summary and statistical significance of difference between multidetector CT (MDCT) and cone beam CT (CBCT) absolute errors for the different sample subsets.

MDCT absolute error minus CBCT absolute error	Mean (mm)	Standard deviation (mm)	P-value
Entire sample	0.17	0.55	0.006^a
Height measurements	0.22	0.67	0.055^a
Width measurement	0.14	0.41	0.036^a
Site where MDCT sections were in correct plane	0.18	0.36	0.053^b
Maxillary sites	0.15	0.47	0.130^b
Mandibular sites	0.19	0.59	0.027^a
Area of incisors	0.16	0.66	0.277^b
Area of canine premolars	0.20	0.54	0.039^a
Area of molars	0.15	0.43	0.130^b

^aPaired t-test

^bWilcoxon signed-rank test