. 2020 Nov 5;63(2):97–102. doi: 10.1111/idj.12024

Table 3.

Sensitivity, specificity, accuracy and A_z values at D₁, D₂ and D₃ thresholds. D₁, 0 = sound, 1–4 decayed; D₂, 0–1 = sound, 2–4 = decayed; D₃, 0–2 = sound, 3–4 = decayed

	Sensitivity			Specificity			Accuracy			A_z
	D₁	D₂	D₃	D₁	D₂	D₃	D₁	D₂	D₃	D₁	D₂	D₃
Visual inspection	0.848^a	0.857^a	1.000^a	0.818^a	0.870^a	0.400^a	0.841^a	0.864^a,b	0.523^a	0.891^a	0.900^a	0.797^a
Radiography	0.697^a,b	0.762^a	0.889^a	0.818^a	0.609^a	0.514^a	0.728^a,b	0.682^b	0.591^a	0.814^a	0.766^a	0.737^a
LF	0.545^b	0.952^a	1.000^a	1.000^a	0.783^a	0.743^b	0.659^b	0.864^a	0.796^b	0.836^a	0.913^a	0.871^a
LFpen	0.848^a	1.000^a	1.000^a	0.818^a	0.870^a	0.571^a,b	0.841^a	0.932^a	0.660^a,b	0.833^a	0.941^a	0.795^a

A_z, area under the receiver operating characteristic curve.

D1, outer enamel; D2, inner enamel; D3, dentine; LF, DIAGNOdent 2095; LFpen, DIAGNOdent 2190.

Different superscript letters show statistically significant differences between diagnostic methods (P < 0.05).