| 摘要 |
PROBLEM TO BE SOLVED: To obtain an oral cavity washer that more effectively massages the gingiva. SOLUTION: The oral cavity washer 1 is provided with a secondary cell 6, an electrode 9 on the part of a user's fingers connected with one pole of the secondary cell 6, and an electrode 8 on the part of his or her oral cavity connected with the other pole of the secondary cell 6 and during the use of the oral cavity washer, electrically connected with his or her oral cavity at least through a fluid L. COPYRIGHT: (C)2009,JPO&INPIT
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