For the past year and a half, I've had these symptoms and none of the dentists I've been to have looked into it when I told them about it. Do you know that sensation you get on your tongue when you rub your tongue in the groove in a chipped porcelain cup? That's what my lower front 6 teeth have felt like for the past year and a half. My gums are swollen, sore and irritated, and I have this sensation of having something stuck in between my teeth. I'm looking for another dentist, but any help on what could be causing these problems would be very appreciated. I've tried all sorts of things, different toothbrushes, toothpastes...nothing has made an ounce of difference.