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Should the handle and bristles of a Tooth brush be made of the same material . Why?
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Should the handle and bristles of a Tooth brush be made of the same material . Why?

User Aleksei Akireikin
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The handle should be strong to last longer and not feel like eating jelly by shaving it from your teeth and the bristles should be made from a softer material than the handle to do bristle things and not hurt.

User Juarez Lustosa
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