. 2020 Jun 30;11(2):e4. doi: 10.5037/jomr.2020.11204

Table 4.

The P-values for the estimated differences in the observations obtained by DPR and CBCT, by three examiners

Variables	P-value

	Examiners

	I	II	III
Periapical lesion (yes/no)^a	0.109	0.201	0.165

Size of radiolucency^b	0.001	0.002	0.002

Relationship between root and radiolucency^b	0.389	0.4	0.132

Location of bone destruction^b	0.112	0.199	0.138

Presence of root canal obturation (yes/no)^a	0.125	0.227	0.039

Obturation length, mm^b	0.361	0.167	0.222

Obturation homogeneity^b	0.168	0.015	0.21

Coronal seal (yes/no)^a	1	1	1

Coronal seal (adequate/inadequate)^b	0.394	0.182	0.853

Presence of complications/failures^a	0.62	0.91	0.712

Root perforation^a	0.5	0.625	0.0001

Endodontically treated root with radiolucency^a	0.275	0.254	0.089

Instrument fractures^a	0.25	0.25	0.25

Post inside the root canal^a	1	0.739	0.739

The P-values for the estimated differences in the observations obtained by DPR and CBCT, by three examiners

^aMcNemar test (statistically significant at the level P ≤ 0.05);

^bMcNemar-Bowker test (statistically significant at the level P ≤ 0.05).

DPR = digital periapical radiography; CBCT = cone-beam computed tomography.