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    • 10. 发明申请
    • DENTAL BLEACHING COMPOSITIONS WITH RHEOLOGICAL STABILITY
    • 具有流变稳定性的牙齿漂白组合物
    • US20150272857A1
    • 2015-10-01
    • US14741206
    • 2015-06-16
    • ULTRADENT PRODUCTS, INC.
    • PETER M. ALLRED
    • A61K8/86A61K8/22A61K8/81A61Q11/02
    • A61K8/22A61K8/25A61K8/34A61K8/345A61K8/38A61K8/8147A61K8/8176A61K8/86A61K2800/592A61K2800/87A61K2800/88A61K2800/92A61Q11/00A61Q11/02
    • Dental bleaching compositions include a dental bleaching agent, a generally linear high molecular weight (e.g., greater than about 500,000) polyvinyl pyrrolidone (PVP) and/or polyethylene oxide (PEO) tissue adhesion agent included in amount that imparts a high level of 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 solvent or carrier. Dental bleaching compositions may include carboxypolymethylene instead of or in addition to PVP and/or PEO, wherein the fumed silica or fumed alumina increases long-term rheological stability even in the presence of a high concentration of dental bleaching agent. Dental treatment devices including a barrier layer and a quantity of the dental bleaching composition positioned adjacent to the barrier layer.
    • 牙齿漂白组合物包括牙齿漂白剂,通常具有线性高分子量(例如,大于约500,000)的聚乙烯吡咯烷酮(PVP)和/或聚环氧乙烷(PEO)组织粘合剂,其具有赋予高水平粘合性的量, 流变改性剂如热解法二氧化硅或热解法氧化铝,其降低或消除了由高分子量PVP和/或PEO引起的引起的粘合剂,以及溶剂或载体。 牙齿漂白组合物可以包括代替PVP和/或PEO或除了PVP和/或PEO之外的羧基多亚甲基,其中即使在高浓度的牙齿漂白剂的存在下,热解法二氧化硅或热解法氧化铝也增加长期的流变学稳定性。 牙科治疗装置包括阻挡层和邻近阻挡层定位的牙齿漂白组合物的量。