The Performance of ICDAS-II Using Low-Powered Magnification with Light-Emitting Diode Headlight and Alternating Current Impedance Spectroscopy Device for Detection of Occlusal Caries on Primary Molars

Table 4

Spearman’s correlation coefficients using Downer classification systems.

	Examiner 1	Examiner 2
AC Impedance Spectroscopy versus histology	0.37	0.36
Low powered magnification and LED versus histology	0.78*	0.73*

∗Correlation significant at the 0.05 level.