A tissue layer, which was continuous with the cementum covering the roots, was found external to the crown enamel of normal, unerupted permanent human teeth. Light microscopy, x-ray diffraction, and amino acid analysis indicated that the major constituent of this tissue was collagen.
No takes yet. Share an insight, caveat, or question.
Levine et al. (1964) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: