Powder mixture, use of the powder mixture, and a powder jet device

1. A powder mixture, in particular for the remineralization of teeth, characterized in that the powder mixture comprises a deposition powder designed to adhere to tooth surfaces, the deposition powder comprises a plurality of agglomerates of nanoparticles,

wherein the plurality of agglomerate nanoparticles has a specific surface area of approximately >50 m2/g,

wherein the plurality of agglomerate nanoparticles' size is in the range between approximately 1 μm and 10 μm;

wherein the powder mixture comprises a carrier powder adhered to the deposition powder;

wherein the carrier powder transports the deposition powder; and

wherein the carrier powder comprises a cleaning powder comprising one or more of sodium carbonate, glycine and alditoles.

2. The powder mixture according to claim 1 , characterized in that the cleaning powder has a mean particle size ranging between 10 μm and 100 μm.

3. The powder mixture according to claim 1 characterized in that the powder mixture offers a cleaning function and a deposition function, whereby the deposition function serves to remineralize the teeth.

4. The powder mixture according to claim 1 , characterized in that the deposition powder is a phosphate powder, and that the portion of the phosphate powder in the powder mixture is preferably between about 0.5% and 30%.

5. The powder mixture according to claim 4 , wherein the deposition further comprising calcium carbonate, one of the preceding claims, characterized in that the calcium/phosphate molar ratio of the deposition powder is in the range between approximately 0.5 and 4.

6. The powder mixture according to claim 1 , one of the preceding claims, characterized in that the deposition powder comprises hydroxylapatite, tricalcium phosphate and/or octocalcium phosphate.

7. The powder mixture according to claim 1 , one of the preceding claims, characterized in that the deposition powder and/or the carrier powder is a carrier of medication and/or other additives.

8. Use of a powder mixture according to one of claims 1 , 2 - 4 , and 5 - 7 , if applicable, together with other finely grained substances such as silica gel, bleaches, analgetics, bactericides and/or flavourings, to produce a means for remineralizing teeth.

9. A method for the remineralization of teeth, comprising the steps of:

providing a powder or powder mixture according to one of claims 1 , 2 - 4 , and 5 - 7 ;

providing a fluid stream and/or air stream;

mixing the fluid stream and/or air stream with the powder or powder mixture to form a fluid/powder mixture;

depositing the fluid/powder mixture onto the teeth;

controlling the deposition by adjusting a ratio between the fluid stream and the powder or powder mixture.