| 摘要 |
Compositions are provided for relieving tooth hypersensitivity in which one or more specifically formulated compositions are applied to the tooth surface. The compositions contain ionic species which result in the formation of precipitates within the enamel tubules with the formation of precipitated salts or other compounds having a particularly low solubility either on in situ mixing of cations and anions, or on reaction with oral liquids. Formation of low-solubility compounds leads to increased deposition of these compounds on tooth surfaces and in dentinal tubules which can lead to dentinal desensitisation. |
