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1 Eastman Dental Dispensary and School of Medicine and Dentistry of the University of Rochester, Rochester, N. Y.
Copper was found to have a random distribution in depth in surface and subsurface enamel. The concentration in the external enamel layer averaged 20 ppm.
There was no appreciable difference in the copper content of the external enamel of erupted and unerupted teeth.
There was a wide variation in the copper content of the surface enamel from different teeth. No correlation was found between the copper content and enamel solubility, pigmentation, hypoplasia, or caries.
Revised on October 25, 1954
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