Published by Paul Knightly, PhD

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I'm finally following through on the advice of my dentist to get an electric toothbrush. I haven't owned one in probably 15+ years, in part because models at the time weren't particularly sustainable and I found myself replacing the entire toothbrush every year or two.

Digging around now I'm finding conflicting reviews and testimonials of rechargeable toothbrushes needing to be entirely replaced either at 9 months or 3 years for the same model. Any recommendations from my feed?


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AI6YR Ben

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@paulknightly Tha always has annoyed me, they tend to be on the consumerism/infinite refill train. There are some brands with readily available head replacements, though.


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Paul Knightly, PhD

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Obviously the former, having the battery completely fail to hold a charge after 9 months is unacceptable and I'm not sure that's a fluke or a misinformed review. It seems almost too awful to believe that a top-line brand like Sonicare would make something like that. 2-3 years for battery life is a bit more palatable, but it seems like the corded varieties of toothbrush handles are all but nonexistent. Indefinite support for brush head replacements is obviously the main driver and a must-have.


@paulknightly I have a sonicare. A) didn’t think it would be much different than a manual brush, but I definitely feel cleaner. B) I’ve had it for over a year and there’s no noticeable battery degradation. It holds a charge for >2 weeks of once-a-day brushing.

by I’m 481 Phones ;


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