I just found all the black gunk you are referring to. I did not know that I was supposed to open and clean it. Can this black gunk make me sick?
Md Ariful Islam
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Dr. Md Rushad Rahman
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It is best to clean it off to avoid any potential contamination being a place where aerobic bacteria develops and can easily enter your mouth while brushing. A clean toothbrush will also make you more happy to brush and enjoy the brushing.
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