Table 2.

Manufacturer’s selected cut-off points for the LF measurements

Score	LF	LFpen	Criteria
0	0–5	0–13	No demineralisation – sound
1	6–14	14–20	Outer enamel demineralisation
2	15–20	21–29	Inner enamel demineralisation
3	21–99	>30	Dentin demineralisation

LF, DIAGNOdent 2095; LFpen, DIAGNOdent 2190.