ORTHODONTIC COMPOSITION WITH HEAT MODIFIED MINERALS
    7.
    发明公开
    ORTHODONTIC COMPOSITION WITH HEAT MODIFIED MINERALS 审中-公开
    有热改性矿物组成正畸

    公开(公告)号:EP2341885A2

    公开(公告)日:2011-07-13

    申请号:EP09792302.3

    申请日:2009-09-08

    IPC分类号: A61K6/02

    CPC分类号: A61K6/0023

    摘要: 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.