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    • 10. 发明申请
    • ORTHODONTIC COMPOSITION WITH HEAT MODIFIED MINERALS
    • 具有热改性矿物的正交组合物
    • WO2010039395A3
    • 2010-08-19
    • PCT/US2009056180
    • 2009-09-08
    • 3M INNOVATIVE PROPERTIES COAMOS DAVID TMORRIS GEOFFREY P
    • AMOS DAVID TMORRIS GEOFFREY P
    • A61K6/02A61K6/083
    • A61K6/0023
    • The invention provides an orthodontic composition, related methods and packaged articles that include a hardenable component, a hardener, and a heat-modified inorganic mineral filler. The composition displays improved hardened remnant cleanup compared with compositions using traditional hard mineral fillers, while maintaining acceptable handling, bond strength and mechanical properties. Bond strength enhancement is achieved by heat-modifying a soft mineral filler, a process by which water of hydration is eliminated from the microstructure of the mineral to form a non-hydrated phase. By using heat-modified mineral fillers that are soft relative to human enamel, the hardened orthodontic composition can be conveniently removed using a low-speed abrasive disk or other mild abrasion process that is safer and more comfortable for the patient. The composition is especially beneficial for use in bonding orthodontic appliances to teeth.
    • 本发明提供包括可硬化组分,硬化剂和热改性无机矿物填料的正牙组合物,相关方法和包装物品。 与使用传统硬质矿物填料的组合物相比,该组合物显示出改进的硬化残余物清洁,同时保持可接受的处理,粘合强度和机械性能。 通过对软矿物填料进行热改性来实现粘结强度提高,该矿物填料是从矿物的微观结构中消除水合水以形成非水合相的过程。 通过使用相对于人类牙釉质柔软的热改性矿物填料,可以使用低速研磨盘或其他适用于患者更安全和舒适的温和研磨方法来方便地去除硬化的正牙组合物。 该组合物特别有利于将正畸矫正器与牙齿结合。