The Action of Fluorine Upon the Calcification of the Dentin in Rats with Low Calcium Rickets

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Abstract
This paper deals with the effects of 1 injn. of NaF soln. on the calcification of dentin in low Ca-high P rickets. This effect was studied in 2 groups of rats. One, in which spontaneous calcification of dentin occurred, and the 2d in which the calcification of dentin was accelerated by the admn. of vitamin D. The response of dentin in low Ca-high P rickets was different from the well established pattern of the dentin response (calciotrauma-tic band) seen in the normal animals and those with high calcium rickets. This response in the present expt. was as follows: when the predentin affected by the F calcified, the calcification on the enamel side of the exptl. dentin line occurred up to and blended with this line. On the pulpal side of this line a layer of uncalcified predentin was seen, and the subsequently formed predentin calcified normally.