TUBULE-CLOSING MATERIALS FROM SILICON DIOXIDE FOR TOOTH CARE PREPARATIONS Russian patent published in 2014 - IPC A61K8/19 A61K8/25 A61K8/26 A61K8/27 A61Q11/00 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to precipitated materials from silicon dioxide for application as abrasive substances or thickening agents in preparations for tooth care, which are simultaneously efficient for closing dentinal tubules in order to reduce dentin sensitivity. The claimed precipitated material from silicon dioxide has an average size of particles from 1 to 5 microns and contains a metal adduct, present on at least a part of its surface for formation of a metal adduct-processed precipitated material from silicon dioxide, which demonstrates more than 10% reduction of zeta-potential in comparison with precipitated material from silicon dioxide of the same structure but without the metal adduct. Also claimed are: versions of tooth care preparation, containing the said precipitated material from silicon dioxide and a method of processing teeth of a mammal with application of such preparations.

EFFECT: claimed precipitated material from silicon dioxide has sufficiently small size of particles and a definite ionic charge, which provides long-term adhesion of the said materials to dentin surface and efficient accumulation inside the dentinal tubules in processing teeth with tooth care preparations, containing the said material.

19 cl, 11 tbl, 10 ex, 6 dwg