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A comment on Ask HN: Something you’ve done your whole life that you realized is wrong?. Parent comment

Re:Ask HN: Something you’ve done your whole life that you re... by qwerty456127 on Monday January 30, 2023 @11:04AM (#34581550)
My dentist told me I should only use a sonic toothbrush Sonicare or similar because they actually clean while rotational electronic toothbrushes almost literally sweep the crap to under your gums (so they clean the teeth but harm gum gealth).
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Re:Ask HN: Something you’ve done your whole life that you re... by havaloc on Monday January 30, 2023 @12:57PM (#34583686)
Mine told me the rotational ones are better. And I think there's some empirical evidence there because when they polish your teeth, they use a rotational tool.
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