| 摘要 |
PURPOSE: A toothbrush containing charcoal is provided, which can alleviate toxicity, remove odor by anion, being emitted from the charcoal, thereby useful for maintaining homeostasis of human. CONSTITUTION: To achieve the above objects, charcoal is pulverized into fine powders. After treating the fine charcoal powders to be non-toxic to human, an effective amount of powder is added in a conventional manufacturing process of toothbrush.
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