| 摘要 |
<p>Iontophoretic devices for treating dentin hzpersensitivity are provided. One device includes a housing (20), en electric current source (30), and a replaceable cartridge (100) mounted to or in the housing. The cartridge (100) includes a container (110) containing an iontophoretic solution (120) and an applicator assembly (130) fixed to the container. The assembly has a tip portion (132) that is in electrical and fluid communication with the solution. Also provided is an iontophoretic toothbrush that includes an applicator assembly that has a brush with improved bristles.</p> |
