The invention of fluoride solution and spray enemies in the primary mixed and stirred tank inside the internal fluoride mixer and the concentration of the fluoride solution is used as tooth care yangchiaek through a secondary mixing by the centrifugal rotation of fluorine tooth care stirred solution through the nozzle so as to always remain constant, preventing the noise and vibration generated during the stirred solution of the fluorine-Fern and to, to eliminate the need for a separate agitator and the like for driving the drive motor, the production and installation of fluorine tooth care solution mixing device is made easy, the fluorine-tooth care stirred solution stirred tank by centrifugal force from rotating inside the stirring tank relates to a method and apparatus for mixing a fluorine tooth care solution supplied to the supply passage, and multiple circulation flow path selector valve through a fluorine concentration detected by the selection valve so as to re-mixed and stirred into a uniform density in the agitation tank being installed on the lower side. The technical configuration, raw water supply line 110 via a water supply on-off valve 120 and the raw water and the fluorine-mix unit 130 and the communication address, the raw water and the fluorine-mix unit 130, one side of the pipe (P) highly pure fluorine compound through the (fluoride), and ever ever fluorine quantitative supply part 140 is performing speech communication with the primary blend with the raw water supply, the other side that is the first tooth care fluoride mixture of the raw water and the fluorine-mix 130 The solution supply pump is supplied to the inside of the stirring tank 180, 150 are communicated with the pipe address (P) is installed, in which the pipe (P), the supply flow path selector valve 160 and the supply flow rate sensing unit (170 ) are provided in this order, while the inside of the stirring tank 180 is supplied to the circular passage 190 is a plurality of layers is
