Methods for manufacturing dental bleaching devices
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United States of America Patent
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Apr 11, 2017
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app pub date -
Mar 29, 2016
filing date -
Jul 26, 2006
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Abstract
Method of manufacturing a dental bleaching device including a dental bleaching composition and a barrier layer. The bleaching composition includes a dental bleaching agent, a generally linear high molecular weight polyvinyl pyrrolidone (PVP) and/or polyethylene oxide (PEO) tissue adhesion agent that imparts adhesiveness, a rheology-modifying agent such as fumed silica or fumed alumina that reduces or eliminates stringiness otherwise caused by the high molecular weight PVP and/or PEO, and a carrier. The barrier layer may comprise a dental tray or strip. Dental treatment devices including a barrier layer and a quantity of the dental bleaching composition positioned adjacent to the barrier layer.
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