The brush body in order selectively local to turn on electricity buccal cavity CARE the tooth lap vis-a-vis the buccal cavity inside opening of the pocket and the like (21), the head section (23) the plural buritsusuru bundles (24) it possesses. The plural buritsusuru bundles (24) includes, the core section which consists of the conductive component (25x) with, the core section (25x) the coating section which consists of the insulated component which is covered (25y) with buritsusuru which it possesses (25). The core section (25x) the coating section (25y) compared to extending particular buritsusuru (25) the point (25a) in functioning it does as an electrode.歯周ポケット等の口腔内隙間に対し選択的に口腔ケア用の局所通電を行うためのブラシ体(21)は、ヘッド部(23)に複数のブリッスル束(24)を有する。複数のブリッスル束(24)が、導電性部材よりなる芯部(25x)と、芯部(25x)を被覆する絶縁性部材よりなる被覆部(25y)とを有するブリッスル(25)を含む。芯部(25x)は当該ブリッスル(25)の先端部(25a)において被覆部(25y)よりも突出して電極として機能する。
