Dental fluorosis in bovine temporary teeth.
Deciduous incisors from calves born to dams fed an average of 40 mg of fluoride/kg of forage ration (40 ppm) were compared with incisors from calves born to dams fed a normal dairy ration. Skeletal fluoride concentration in the calves born to fluoride-fed dams was increased 5 to 8 fold, but enamel mottling and hypoplasia, typical of permanent bovine incisor dental fluorosis were not seen by gross, histologic, or radiologic examination. Decreases in the amount of enamel on the tooth or hardness of the enamel were not observed. These data do not support recent reports of widespread dental fluorosis of deciduous bovine teeth as a clinical sign of fluoride toxicity.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000139:chemically induced* / Q000378:metabolism; D004577:Electron Probe Microanalysis; D005260:Female; D009050:Fluorosis, Dental / Q000139:chemically induced / Q000378:metabolism / Q000662:veterinary*; D005503:Food Additives; D007180:Incisor / Q000032:analysis; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D012969:Sodium Fluoride / Q000009:adverse effects*; D014094:Tooth, Deciduous / Q000032:analysis
D005503:Food Additives; D012969:Sodium Fluoride