(1961). Human Dental Enamel in Polarized Light and Contact Micro-Radiography. Acta Odontologica Scandinavica: Vol. 19, No. 2, pp. 259-287.
No takes yet. Share an insight, caveat, or question.
Gustafson et al. (1961) studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: