| 摘要 |
PROBLEM TO BE SOLVED: To provide a toothbrush enhanced in sterilization and bad breath preventive effects by minus ions, cleaning effect of removing plaque, or the like by examining the material of a metal to be buried in a part of the toothbrush. SOLUTION: In this toothbrush, a first metal 5 consisting of a titanium material is buried in a brush head part 4 integrally or attachably/detachably provided on one end side of a brush handle 2 and having bristles 3 so as to be partially exposed to the outside. Particularly, the metal consisting of the titanium material and a second metal 6 differed from the titanium material are preferably provided in the brush head part 4. COPYRIGHT: (C)2003,JPO
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