The Efficiency of Operating Microscope Compared with Unaided Visual Examination, Conventional and Digital Intraoral Radiography for Proximal Caries Detection

Table 5

Pairwise comparisons of 𝐴_𝑧 values.

	Pairwise	Difference between area	Std. error (a)	P value	Asymptotic 95%
					confidence interval
					Lower bound	Upper bound
1st Observer	Operating microscope-unaided visual examination	0.000	0.051	.996	−0.099	0.099
	Operating microscope-film radiography	0.150	0.072	.036	0.010	0.291
	Operating microscope-RVG	0.143	0.072	.048	0.001	0.285
	Unaided visual examination-film radiography	0.150	0.072	.038	0.009	0.291
	Unaided visual examination-RVG	0.143	0.073	.050	0.000	0.285
	Insight-RVG	0.007	0.054	.896	−0.099	0.113
3rd Observer	Operating microscope-unaided visual examination	0.001	0.036	.984	−0.070	0.071
	Operating microscope-film radiography	0.240	0.078	.002	0.087	0.393
	Operating microscope-RVG	0.226	0.078	.004	0.074	0.379
	Unaided visual examination-film radiography	0.241	0.078	.002	0.088	0.394
	Unaided visual examination-RVG	0.227	0.078	.003	0.075	0.380
	Film radiography-RVG	0.014	0.047	.772	−0.078	0.106