Date of Award:

5-1962

Document Type:

Dissertation

Degree Name:

Doctor of Philosophy (PhD)

Department:

Nutrition, Dietetics, and Food Sciences

Department name when degree awarded

Nutrition and Biochemistry

Committee Chair(s)

Ethelwyn B. Wilcox

Committee

Ethelwyn B. Wilcox

Committee

L. Elmer Olson

Committee

Thomas L. Bahler

Committee

Margaret B. Merkley

Committee

J. L. Shupe

Abstract

Fluorides are usually found in nature as constituents of soils, water, and the tissues of animals. Fluorite or fluorspar (CaF2), cryolite (Na3AlF6), apatite (3 Ca3 (PO4)2 CaF2) and sedimentary phosphate rocks are among the principle minerals containing fluorides found in nature. Traces of fluorides also occur in domestic water supplies in nature and also by induction in vegetation and animal feeds. From 0.5 ppm to 1.5 ppm of fluorides in drinking water is the range found to be beneficial in reducing the incidence of tooth decay in man. In animals, receiving abnormally elevated intakes of fluorides for a relatively short time or from sustained ingestion of small quantities over long periods, interference with normal life processes with resultant impaired performance or utility has been reported.

Checksum

76da51f677459d4483b5d9008deb18c3

Share

COinS