I don’t know about you, but my relationship to dentistry is somewhat infantile. I went this week. I go every six months (hygienist too) but though I brush twice a day with an expensive electric toothbrush, I’m very bad at all that interdental work you’re supposed to do. But then when I notice that the appointment is coming up, for ten days or so, fearful of being told off by the dentist, I work hard with those little brushes – red, blue and yellow – in the hope that I won’t be admonished this time round.

It never really works. There’s always some plaque here, some bleeding there and I get the lecture on what I have to do. Often it seems to be the opposite of what I remember from the previous time: use the thinnest brush first or last? And there was a period when the hygienist was keen on interdental brushes and the dentist was pushing me to floss instead. But they seem to have converged on the little brushes now.
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