| 摘要 |
PURPOSE: Oral hygiene compositions, in particular remilitarizing compositions comprising a source of calcium ions and a source of phosphate ions, is provided. Such compositions are used in the prophylaxis and treatment of caries and/or sensitivity. CONSTITUTION: A two phase remilitarizing composition comprises: a) as a first component an aqueous calcium phase comprising a water-soluble calcium salt providing from 0.05 to 10%, by weight of the calcium phase, of calcium ions, and b) as a second component an aqueous phosphate phase comprising a stabilizing amount of a polyphosphate salt and a water-soluble phosphate salt providing from 0.05 to 10%, by weight of the phosphate phase, of phosphate ions; the two phases being kept separate until use, whereupon on mixing they provide a single phase having a pH from 2.0 to 5.0 and a molar ratio of calcium ions to phosphate ions of from 0.5: 1 to 5: 1 capable of remilitarizing teeth.
|
