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The Relationship Among the Permeability to Iodide, Pore Volume, and Intraoral Mineralization of Abraded Enamel

Measurements of the permeability to iodide (Ip) of the outer portion of abraded bovine enamel were found to be related to the pore volume. Intraoral exposure of the enamel produced a rapid decrease in Ip after 0.5 h and a slower decrease during the next three h. This decrease was due to mineralization, and it was shown that the rate of mineralization decreased with a decrease in the pore volume of the enamel.