Lower front teeth problem
I'm already embarassed at not knowing the name of the two front, lower teeth, heh. In any case, I've just noticed that there is a yellow fuzz on the back on these teeth. I brush my teeth regularly, once a day (with the occasional miss) but do not spend very much time on the back. I've also noticed that when I slide my tongue over the back of these two teeth, it feels rough, not smooth like the rest of my teeth, even the two front upper ones. I'm not even going to try to guess what it is, but it covers the backs of both of these teeth, starting from the gums up. There also seems to be some on the two teeth next to the middle ones. Any ideas?