US Patent No. 9,107,856 B2; GlaxoSmithKline, LLC, Wilmington, DE, has patented an alcohol-free dental appliance cleansing formulation which is applied as an appliance outside the wearer’s mouth for at least about 60 seconds, and which is a metastable emulsion. It has an aqueous phase and a water immiscible oily phase. The oily phase has combination of one or more immiscible oils selected from sesame oil, soybean oil, canola oil, coconut oil, fractionated coconut oil, fish oil, or mineral oil, an...