US Patent 8071076 Oral lubricating and stain retarding compositions

An oral lubricant having usefulness for alleviating the symptoms of dry mouth and preventing accumulation of dental stains based on a polyvinyl alcohol polymer containing composition in an orally acceptable carrier or vehicle. The invention relates generally to an oral composition having a function in lubricating the mouth and preventing the formation of stains on the surfaces of the teeth. The active ingredients of the composition are a polyvinyl alcohol, a metal chelating agent, lipophilic vitamin, surface active material and a phenolic anti microbial agent with anti-inflammatory properties.