the comparative testing of the tooth-pastes `` '' silca mit fluor '' '' , `` '' fluorodent '' '' and `` '' silica '' '' ( without fluorine ) in a programmed animal experiment for 6 weeks revealed differences in caries-protective efficiency and and in deposition of fluoride in dental enamel , `` '' silca mit fluor '' '' being superior to `` '' fluorodent '' '' .
C0011334
es in
C0016327
fl