| 摘要 |
This invention relates to oral hygiene in particular to oral hygiene means comprising a chamber for active fluid to which a first passageway in a toothbrush is connectable, a flexible panel on the chamber, a piston to co-operate with the flexible panel, a drive means for the piston, a spent fluid chamber to which a second passageway in a toothbrush is connectable, and a means of creating a low or negative pressure connected to the spent fluid chamber, at least the chamber for fluid being disposable and replaceable for each oral hygiene operation. |
