title: Uptake of 45Ca from a topically-applied monofluorophosphate sodium fluoride calcium hydroxide dentifrice by rat enamel.
abstract: Relative 45Ca-uptake in vivo was determined by etchings after dentifrice application between 18 and 22 days of age; uptake increased and the Ca and P that dissolved decreased with application time. The mechanism of 45Ca-uptake from the dentifrice may be due to either isotopic exchange or to the precipitation or crystal growth of calcium and phosphate.
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism*; D002126:Calcium Hydroxide / Q000008:administration & dosage* / Q000378:metabolism; D002132:Calcium Radioisotopes; D003743:Dental Enamel / Q000378:metabolism*; D003802:Dentifrices / Q000008:administration & dosage; D005459:Fluorides / Q000008:administration & dosage* / Q000378:metabolism; D010710:Phosphates / Q000008:administration & dosage* / Q000378:metabolism; D010758:Phosphorus / Q000378:metabolism; D051381:Rats; D012969:Sodium Fluoride / Q000008:administration & dosage* / Q000378:metabolism
chemical_list: D002132:Calcium Radioisotopes; D003802:Dentifrices; D010710:Phosphates; C012980:fluorophosphate; D010758:Phosphorus; D012969:Sodium Fluoride; D002126:Calcium Hydroxide; D005459:Fluorides; D002118:Calcium