Sometimes the top area is sore too. I thought i was biting it in
my sleep, but the area is way below where i can bite. also,
my gums are a bit red and there is a white spot right where it meets the tooth. I brush, floss, and use mouth wash twice a day. There is no food stuck there. I even tried rinsing out w/ salt water three times a day, but it didnt seem to work. The area that is sore seems to have a white layer on top, nothing huge.