Table 2.

Pairwise comparison of approximal surfaces and occlusal surfaces

		Difference between areas	95 % CI	SD	Z statistics	p Value
Approximal surfaces	CBCT/digora	0.0351	0.0024–0.0677	0.0167	2.1066	0.0352
	CBCT/film	0.0380	0.0088–0.0672	0.0149	2.5499	0.0108
	digora/film	0.0029	−0.0267–0.0326	0.0151	0.1938	0.8463
Occlusal surfaces	CBCT/digora	0.0535	−0.0993– − 0.0077	0.0234	−2.2877	0.0222
	CBCT/film	−0.0222	−0.0674–0.0229	0.0230	−0.9647	0.3347
	Digora/film	0.0313	0.0139–0.0486	0.0089	3.5221	0.0004