Electric toothbrushes are objectively better at removing plaque and bacterial biofilm, but how you use them is crucial. They can also fuck up your gumline if used too vigorously (so can normal toothbrushes, but it's more likely with an electric), and gum tissue does not regenerate, and a receding gumline exposes more vulnerable areas of the teeth. Tooth enamel durability plays a major role and is genetically variable. Some people are born with superman level tooth enamel. Others are born with bitchmade enamel.
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