into saliva from ph neutral gumscontaining separate calcium and phosphate additives concentration sup 1 mmol ladditive 0 2 min 14 16 min______________________________________control ca 1 11 u00b1 0 11 0 90 u00b1 0 07 5 ca lactate ca 10 3 u00b1 2 20 2 48 u00b1 0 205 cagluconate ca 4 85 u00b1 1 32 1 87 u00b1 0 275 ca citrate ca 1 20 u00b1 0 12 1 30 u00b1 0 135 ca glycerophosphate ca 8 84 u00b1 1 45 2 14 u00b1 0 71 p 3 59 u00b1 1 33 3 51 u00b1 0 733 ca glycerophos ca 5 80 u00b1 0 54 1 21 u00b1 0 09phate 2 mcpm p 12 8 u00b1 1 70 6 63 u00b1 1 702 na phosphate ca 0 55 u00b1 0 07 0 76 u00b1 0 14 p 20 3 u00b1 0 26 4 15 u00b1 0 705 cacarbonate ca 0 80 u00b1 0 00 0 93 u00b1 0 07______________________________________ sup 1 mean u00b1 s d n 3 one embodiment of the remineralizing toothpastes of the invention comprise a calcium containing component and a phosphate containing component stored in separate containers to prevent premature development of hydroxyapatite in the presence of the wet components of the toothpaste in a first example a calcium phosphate containing toothpaste is prepared as described in table v in this example the calcium source is calcium glycerophosphate and the phosphate cource is monohydrogenphosphate heptahydrate and sodium dihydrogen phosphate the phosphate containing component also advantageously contains.