How come this brilliant mediocre post of yours didn't get any recognition, while so many not-so-mediocre ones are showered with gold?

Welcome to my blog, haha. That's the way it is, you know it :-) Besides, I love being low key...

The fact that you (and a few others) found this post and enjoyed reading it is all the compensation I need.

As for the 45-degree angle, maybe there is scientific credence to that, but I maintain that brushing at whatever angle feels right works fine, as long as you're mindful of the gumline...(?)