[Fluoride release from toothpastes in the newly produced and stored states].
The free ionic concentration of fluoride of 16 toothpastes for adults, of 5 pastes for children, and of one fluoride gel were analysed straight after production and after 4 months of storage. The fresh products containing fluoride as inorganic salt of hydrofluoric acid or as organic fluoride salt contained more than 65% of the manufacturers declaration of ionic fluoride. In the pastes containing sodiummonofluorphosphate the assessed concentration of free fluoride ions was less than 20% of the declaration. After 4 months of storage more than 75% of the ionic fluoride found in the new products could still be detected. The pastes containing sodiummonofluorphosphate, however, showed an increase of the ionic concentration of fluoride.
Hanfland
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Abteilung Kinderzahnheilkunde, Zentrum für Zahn-, Mund- und Kieferheilkunde Giessen.
Wetzel
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D004356:Drug Storage; D005459:Fluorides / Q000032:analysis*; D005858:Germany; D011199:Potentiometry; D012464:Saliva, Artificial; D012996:Solutions; D013557:Switzerland; D013997:Time Factors; D014100:Toothpastes / Q000032:analysis*; D014867:Water
D012464:Saliva, Artificial; D012996:Solutions; D014100:Toothpastes; D014867:Water; D005459:Fluorides
Fluoridfreisetzung aus Zahnpasten im produktionsfrischen und gelagerten Zustand.