RADIOIODINE PENETRATION THROUGH INTACT ENAMEL WITH UPTAKE BY BLOODSTREAM AND THYROID GLAND
HERBERT J. BARTELSTONE D.D.S.1
1 Veterans Administration Hospital, Bronx, N. Y. and College of Physicians and Surgeons, Columbia University, New York, N. Y.
A solution (0.5 ml.), containing 500 microcuries of carrier-free I-131 as NaI-131, was applied to the external surface of intact enamel of eight animals. Significant counts were observed over the thyroid gland, indicating penetration of I-131 through enamel and dentin and thus into the pulp and the blood stream. Radioautographs demonstrate diffuse penetration of I-131 through enamel and dentin and uptake by the periodontal tissues.
Submitted on March 13, 1951
