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Ket [755]
3 years ago
6

Describe two reasons for replacing an old toothbrush

History
2 answers:
Rufina [12.5K]3 years ago
7 0
You can get sick from reusing your tooth brush
it can add more bacteria in your mouth therefore causing cavities
kow [346]3 years ago
7 0
Toothbrushes will accumulate bacteria (bacteria on teeth) and you will have good hygiene (maintain good health)
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