| 摘要 |
In a toothbrush in which an electric potential is established via a handle electrode and the bristles as electrodes, to assist plaque removal, a battery is formed integral with the handle to reduce handle size. Handle chamber 39 a encloses negative electrode substance 42 in contact with plate 26, separator 44 and positive electrode substance 41 in contact with hand-contacting electrode plate 32. Plate 26 terminates in a surface cavity immediately before the brush bristles to allow liquid such as saliva to provide electrical connection between the plate and bristles. Battery materials are described. |
