• mods_are_assholes@lemmy.world
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    8 months ago

    If you made a custom alloy blade that was harder than calcium carbonate but softer than steel, it would work.

    Same idea with those dental tools you can get in the drug store, hard enough to chip plaque but soft enough to deform against enamel. Hypothetically can’t damage your teeth unless you get stupid and use it as a lever or something.