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. Author manuscript; available in PMC: 2013 Aug 29.

Published in final edited form as: J Biophotonics. 2011 Jul 25;4(0):814–823. doi: 10.1002/jbio.201100014

Fig. 2 — A) Representative A-scan depth profiles from regions of sound enamel and carious enamel. The fitting the exponential decaying slope of the OCT A-scans to derive the optical attenuation coefficient parameter (α) are illustrated with the solid lines. (a.u. = arbitrary units)

B) Histograms of the A-scan signal from sound and carious enamel along with the lognormal fit to the histogram.

Fig. 2 — A) Representative A-scan depth profiles from regions of sound enamel and carious enamel. The fitting the exponential decaying slope of the OCT A-scans to derive the optical attenuation coefficient parameter (α) are illustrated with the solid lines. (a.u. = arbitrary units)

B) Histograms of the A-scan signal from sound and carious enamel along with the lognormal fit to the histogram.