Smooth surface caries mIcroscope The early lesion is cone-shaped, with the base of the cone on the enamel surface and the apex pointing towards the amelodentinal junction. Department of Oral Pathology, Shandong University http://1.51.214.13Department of Oral Pathology, Shandong University 7 http://1.51.214.13 Microscope： The early lesion is cone-shaped, with the base of the cone on the enamel surface and the apex pointing towards the amelodentinal junction