DENTAL COLOURANT Russian patent published in 2011 - IPC A61K6/02 A61K8/18 A61K8/24 A61K8/72 A61K8/73 A61Q11/00 

FIELD: medicine.

SUBSTANCE: colourant contains, wt %: pigments - 1.00-10.00, calcium hydroxyapatite - 0.10-5.00, a filming agent - copal resin - 21.00-35.00, a plasticiser - dibutylphthalate or dioxylphthalate - 0.01-0.55, a solvent - ethyl or isopropyl alcohol - up to 100. As an ingredient, the agent can contain calcium hydroxyapatite in the form a fine-dispersed powder or in the form of 0.2-20 % alcoholic colloidal solution of nano-sized hydroxyapatite. The colorant can contain interferent pigments and glitter-effect pigments. The offered formulation is characterised by ease and convenience of application, drying of the applied coating for 90-120 seconds. What is provided is a uniform thickness of the coating which keeps an aesthetic appearance for more than 4 hours after application and if necessary, is easily removed from the surface of teeth by means of a tooth-brush.

EFFECT: lower thermal and taste hypersensitivity of teeth both when applied on teeth, and after removed.

4 cl, 11 ex