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Science 21 July 1967:
Vol. 157. no. 3786, pp. 328 - 329
DOI: 10.1126/science.157.3786.328
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Articles

Wrinkling of Molar Crowns: New Evidence

Bertram S. Kraus 1 and Seishi W. Oka 1

1 Cleft Palate Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania

We submit that wrinkling of molar crowns in Primates is a phenomenon of genetically controlled activity of the inner enamel epithelium that is grossly evident soon after initial calcification of the tooth occurs. The amount and pattern of this wrinkling are characteristic of the species before they are evident in the enamel surface itself.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)