and, here's some more curious news - either due to remineralization, cleaning or (hopefully not) recession, that one tooth that i agreed probably needed a drilling now has a visibly healthy, white bottom part of the tooth.
there's still some shit up the tooth a bit, but it looked like it needed a root planing, at least; not anymore. whatever plaque remains is only away from the gumline, now. and, that seems like massive progress.