Cyclodextrins as dental cleaning powders
The invention relates to the use of a powder in a powder jet device for cleaning tooth surfaces by powder spraying, wherein the powder comprises cyclodextrin. The invention also relates to a process for cleaning tooth surfaces with a powder jet device, wherein the powder comprises cyclodextrin and the invention relates to a powder or powder mixture for use in a powder jet device, wherein the powder or powder mixture comprises cyclodextrin.
1 . A powder, comprising:
10 to 80 wt.-% cyclodextrin; and
90 to 20 wt.-% glycine, sodium hydrogen carbonate and/or an alditol;
wherein the powder is configured to be used in a powder jet device for cleaning tooth surfaces by powder spraying and the cyclodextrin is prepared to have a lower abrasiveness than glycine and erythritol.
2 . The powder according to claim 1 , wherein the cyclodextrin is α-cyclodextrin, β-cyclodextrin, γ-cyclodextrin or mixtures thereof.
3 . The powder according to claim 1 , wherein the powder further comprises 0.5 to 3 wt.-% amorphous silicon dioxide.
4 . The powder according to claim 1 , wherein the average particle size of the powder is 5 to 75 μm.
5 . The powder according to claim 1 , wherein the maximum particle size of the powder is 200 μm.
6 . The powder according to claim 1 , wherein the powder further comprises a bac-tericide, a bleaching agent or an analgesic.
7 . The powder according to claim 1 , wherein the powder comprises 10 to 80 wt.-% cyclodextrin and 90 to 20 wt. % glycine, sodium hydrogen carbonate, tagatose, trehalose and/or alditols.
8 . The powder according to claim 1 , wherein the powder comprises granules having an average particle size of 20 μm to 220 μm, wherein the granules comprise primary particles comprising a binder, wherein the primary particles have an average particle size smaller than the average particle size of the granules and wherein the binder comprises cyclodextrin.
9 . A process for cleaning tooth surfaces, wherein a powder according to claim 1 is sprayed with a powder jet device onto a tooth surface together with a gaseous or liquid carrier medium.
10 . Powder according to claim 1 , wherein the alditol is erythritol.
11 . Powder according to claim 2 , wherein the alditol is erythritol.
12 . Powder according to claim 3 , wherein the alditol is erythritol.
13 . Powder according to claim 7 , wherein the alditol is erythritol.
14 . Powder according to claim 4 , wherein the alditol is erythritol.
15 . Powder according to claim 5 , wherein the alditol is erythritol.