Espigares J, Sadr A, Hamba H, Shimada Y, Otsuki M, Tagami J, Sumi Y. J. Med. Imag. 2(1), 014001 (Feb 11, 2015). doi:10.1117/1.JMI.2.1.014001 A technology to characterize early enamel lesions is needed in dentistry. Optical coherence tomography (OCT) is a noninvasive method that provides high-resolution cross-sectional images. The aim of this study is to compare …