Patent ID: 11911228
Assignee: LUKE CO., LTD.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. A method for cleaning teeth, comprising:
injecting an aqueous solution for intraoral cleaning via irradiation with an ultraviolet ray and/or a near-ultraviolet visible ray and/or a ray in an 800-900 nm near-infrared region,
wherein the aqueous solution includes:
hydrogen peroxide, a concentration of the hydrogen peroxide in the aqueous solution being in a range of 1 w/v % to 7 w/v %;
water containing iron and coper as impurities, an amount of each of the iron and the copper being less than 0.05 mg/L in the water; and
a hydrogen peroxide stabilizer, a concentration of the hydrogen peroxide stabilizer in the aqueous solution being 81 ppm (mg/L) or less, the hydrogen peroxide stabilizer being at least one of a group consisting of phosphoric acid, phenacetin, and acetanilide,

after the ultraviolet ray and/or the near-ultraviolet visible ray and/or the ray in the 800-900 nm near-infrared region irradiates the aqueous solution for five minutes, there is no decomposed products that are toxic to a human in the aqueous solution via a high performance liquid chromatography analysis, and
a content of impurity heavy metals, which decompose the hydrogen peroxide, in the aqueous solution is 0.001 w/v % or less with respect to the hydrogen peroxide, and
the hydrogen peroxide stabilizer is configured to prevent the hydrogen peroxide from being decomposed by the impurity heavy metals.