Oral care cleaning system utilizing entrained fluid
The present invention provides for oral care systems comprising: an appliance comprising a first and second plurality of nozzles, the appliance configured to be held in the mouth of a user with the first and second plurality of nozzles in fluid communication with one or more surfaces of the user's oral cavity; a source of gas; a source of liquid; and a fluid controller for directing entrained fluid to the appliance. Also provided are methods of cleaning, or otherwise providing benefits to, one or more surfaces of the oral cavity using a system of the present invention.
1. An oral care system configured for cleaning or treating a user's oral cavity comprising:
a. an appliance comprising a first and second plurality of nozzles, said appliance configured to be held in the mouth of the user with said first and second plurality of nozzles in fluid communication with one or more surfaces of the user's oral cavity;
b. a source of gas,
c. a source of liquid; and
d. a reciprocating fluid controller for directing fluid to said appliance;
wherein such system is configured such that gas from said source of gas is pulsed from said reciprocating fluid controller to said first plurality of nozzles in said appliance at a gas pulse frequency of from 0.1 Hz to 25 Hz and liquid from said source of liquid is pulsed into the gas pulsed from the reciprocating fluid controller at a liquid pulse frequency of greater than 0 Hz to 50 Hz by the reciprocating fluid controller, which to form entrained fluid between said reciprocating fluid controller and said first plurality of nozzles and wherein i) the liquid pulse frequency and direction and ii) the gas pulse frequency and direction are controlled by programming and the reciprocating fluid controller and further wherein the liquid pulse frequency and direction is controlled by programming different from the programming controlling the gas pulse frequency and direction, a frequency ratio (liquid/gas) is from greater than zero to 50, and said source of gas provides gas at a pressure of 5 to 20 psi and said reciprocating fluid controller reciprocating the flow of the fluid, liquid and gas.
2. The system of claim 1 wherein said frequency ratio (liquid/gas) is from greater than zero to 15.
3. The system of claim 1 wherein said frequency ratio (liquid/gas) is from greater than zero to 10.
4. The system of claim 1 wherein said source of gas provides gas at a pressure of 10 to 15 psi.
5. The system of claim 1 wherein said system provides a fluid pulse of 0.001 to 0.10 ml per nozzle-pulse.
6. A method of providing an oral care benefit to one or more surfaces of the oral cavity comprising holding an appliance of a system according to claim 1 in the mouth of a user and operating said system to direct entrained fluid to and remove fluid from said appliance.
7. The method of claim 6 wherein said entrained fluid comprises a mouthwash liquid.
8. The method of claim 7 wherein said mouthwash liquid comprises water and one or more essential oils selected from the group consisting of menthol, thymol, eucalyptol, methyl salicylate and combinations of two or more thereof.
9. The method of claim 8 wherein said mouthwash liquid comprises ethanol.
10. The method of claim 8 wherein said mouthwash liquid is free of ethanol.
11. The system of claim 1 wherein said liquid is pulsed at a frequency of from 5 to 30 Hz.
12. The system of claim 3 wherein said liquid is pulsed at a frequency of from 5 to 30 Hz.