Abstract: A treatment-and-prophylactic tooth paste possessing anticarious effect which comprises an abrasive agent, a gellating agent, a wetting agent, a surfactant, a flavouring agent, 0.5 to 2% by weight of an anticarious substance which is a product obtained by treatment of bone tissue with a diluted mineral acid to a complete dissolution of mineral components and water-soluble proteins contained in the bone tissue, separation of the resulting solution, dilution thereof with water with the addition of a stabilizing agent, citric acid or salts thereof, followed by neutralization of the solution and drying, which contains the following components, percent by weight:______________________________________ calcium 2 to 6 sodium 19 to 23 potassium 0.04 to 0.18 mineral acid anion 6 to 10.6 orthophosphoric acid anion 1.5 to 5.0 water-soluble proteins 1.0 to 5.0 magnesium 0.05 to 0.2 a mixture of trace elements in- cluding fluorine, manganese, tin, zinc, iron 0.01 to 0.