BRUSH BODY AND TOOTHBRUSH

摘要

A brush body has bristle bundles embedded in a brush head. A bristle contained in the bristle bundles includes a core which consists of a conductive member, and a sheath which consists of an insulating member and covers the core. The core is exposed at the tip portion of the bristle and functions as an electrode for passing current into the mouth. The embedding of the bristle bundles in an electrically conductive base arranged in the brush head electrically connects the core to the base.