question: I have a small white spot on my lower gums right below a tooth, it appears almost as a holr as i think i can feel the bone behind it, it looks like another one is foeming below another tooth, I have no idea how long they have been there, do not hurt or bleed, had a popcorn kernal stuvk in between and that is when I noticed it. I go the dentist frequently and he has never mentioned anything about them, no loose teeth, what could it be?