Abstract

Various embodiments of the invention include systems and methods of generating nano-sized salt particles. These methods include generation of a supersaturated solution of a salt MX by mixing of salts MY and NX in which the solubility of MX is lower than that of MY, NX or NY. In some embodiments, nano-sized particles of MX are grown further by further adiabatic addition of salts MY and/or NX. In some embodiments, MX includes potassium nitrate. Some embodiments include compositions of MX configured for use in treatment of dentine sensitivity.

IPC Classes  ?

• A61K 8/19 - Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
• A61Q 11/00 - Preparations for care of the teeth, of the oral cavity or of dentures, e.g. dentifrices or toothpastesMouth rinses
• C01B 21/48 - Methods for the preparation of nitrates in general
• C01D 9/08 - Preparation by double decomposition
• C01D 9/10 - Preparation by double decomposition with ammonium nitrate
• C01D 9/12 - Preparation by double decomposition with nitrates of magnesium, calcium, strontium, or barium
• C01D 9/14 - Preparation by double decomposition of salts of potassium with sodium nitrate
• C01F 11/22 - Fluorides
• C01F 11/46 - Sulfates
• C01G 19/04 - Halides

Abstract

Dental trays, toothbrushes, and other devices are provided for the active delivery of medicaments into hard and soft tissues, particularly those of the oral cavity. The devices apply an AC voltage with a DC offset to drive medicaments into the tissues.

IPC Classes  ?

• A61C 3/00 - Dental tools or instruments