Polished coronal section from a mandibular incisor tooth of a 6-week old transgenic mouse over-expressing dentin sialoprotein in the enamel matrix. The mesial aspect of the tooth is to the top, and the labial aspect is to the right. The junction between the enamel and the underlying dentin (dentino-enamel junction) is clearly evident. Image from Michael Paine’s lab.
Tooth enamel research
