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    • 8. 发明授权
    • System for protection of soft tissues against a teeth whitening substance
    • 用于保护软组织免受牙齿美白物质的系统
    • US09468393B2
    • 2016-10-18
    • US14319260
    • 2014-06-30
    • KONINKLIJKE PHILIPS N.V.
    • David Andrew FishNigel David YoungJay PatelEstelle Julie Dorothee Bernhard-FichetPeter Douglas Fairley
    • A61B5/053A46B15/00A61C19/06
    • A61B5/053A46B15/0002A46B15/0004A46B2200/1066A61C19/063A61C19/066
    • The appliance includes a brushhead having conductive fiber bristles by which a potential is applied to electrochemically activate a teeth whitening substance, such as peroxide, in the vicinity of the teeth. An impedance appliance system (62) or an optical appliance system (27) provides information concerning whether the conductive fiber bristles are adjacent a tooth surface or gum region. The impedance system uses an electrical signal through the fiber to determine the impedance of a circuit which includes the tooth or gum surface, the impedance being different, depending on whether a tooth or gum surface is in the circuit. The optical system generates a light beam which is directed to the mouth surface through a conductive fiber, the color of the returning light indicating whether the surface is a tooth or gum region. If a tooth is determined, the teeth whitening substance is activated at that bristle, while if gum tissue is determined, the teeth whitening substance is not activated at that bristle.
    • 该器具包括具有导电纤维刷毛的刷头,通过该刷头施加电位以电化学地激活牙齿附近的牙齿美白物质,例如过氧化物。 阻抗器具系统(62)或光学器具系统(27)提供关于导电纤维刷毛是否邻近牙齿表面或牙龈区域的信息。 阻抗系统使用通过光纤的电信号来确定包括牙齿或牙龈表面的电路的阻抗,阻抗是不同的,这取决于牙齿或牙龈表面是否在电路中。 光学系统产生通过导电纤维指向口表面的光束,返回光的颜色表示表面是牙齿或牙龈区域。 如果确定牙齿,牙齿美白物质在该刷毛处被活化,而如果确定牙龈组织,那么该牙齿美白物质在那根毛上不被激活。