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Table 3 Automated evaluation results of the Quantitative Light Fluorescent (QLF) images for fluorosis compared to clinical exam indices tooth scores for the upper left central incisor

From: Quantitative Light Fluorescence (QLF) and Polarized White Light (PWL) assessments of dental fluorosis in an epidemiological setting

QLF METRIC (mean)

TF SCORE (Clinical from Examiner 1)

Spearman’s rho

Kendall’s tau b

0

1

2

3

4

5

6

7

P < 0.001

% Area

16.89

21.17

27.90

32.88

45.42

45.30

49.70

42.68

.735

.593

Δ F

0.0482

0.0540

0.0622

0.0747

0.1067

0.1049

0.0891

0.1205

.730

.586

Δ Q

0.0094

0.0122

0.0183

0.0258

0.0526

0.0553

0.0460

0.0514

.742

.600

DEANS SCORE (Clinical from Examiner 3)

 

Normal

Questionable

Very Mild

Mild

Moderate

Severe

 

% Area

14.90

22.36

22.05

32.07

31.03

45.75

.793

.652

Δ F

0.0444

0.0566

0.0548

0.0669

0.0670

0.1076

.777

.635

Δ Q

0.0069

0.0139

0.0126

0.0224

0.0210

0.0537

.798

.659