> I reduced my cleaning visits to once a year because there's usually nothing there for the hygienist to remove.
I've never been to an oral hygienist; I go to the dentist once every 12-18 months on his advice. (Though currently almost two years due to the pandemic; emergency appointments only.)
> Perhaps you tried the wrong kind of toothbrush?
Yeah, there'd always be someone's preferred brand that I didn't try and would be better even if I was saying I liked the one I did - I just don't feel the need to try multiple expensive electric ones when manual seems fine to me, and in adult life at least check-ups have just been 'all good, see you in 12mo'.
> https://www.deltadentalins.com/oral_health/overbrushing.html
Perhaps I do brush too hard, I'll try (not doing) that. But that's surely an orthogonal issue, one could (I probably did) brush 'too hard' regardless of whether it's manual or electric.