A method of cleaning an oral appliance allows a dental patient or other oral appliance wearer to dean the appliance while the appliance is in place in the wearers month, The appliance wearer dispenses a quantity of foamed, cleanser formulation into to his or her mouth, swishes the cleanser around in the mouth for a desired amount of time, and then expectorates any remaining, cleanser. A cleaning kit for an oral appliance is also provided and includes a mixture of water, hydrogen peroxide, and at least one surfactant in a foam-dispensing bottle.
