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The ToothPaste-Brush is a device that combines a toothbrush with the toothpaste container as to not take up as much space. The whole thing could be made of a soft, squeezable rubber. Babies toothbrushes have rubber bristles to be softer on the teeth, this would be made of rubber so that you could easily squeeze the paste through both the base of the brush and the bristles, and the rubber bristles won’t get frayed and destroyed as quickly, it is also refillable. As an effect of these simple features, you could easily keep this through your time in space. People in space still need to keep up dental hygiene as to not lead to serious health issues. This is a preventative of things like cavities, tooth decay and gum diseases, and more that need and would require serious medical procedures that they simply cannot do in a zero gravity environment.
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