I had a filling fall out of my tooth about 4 months ago, and havent had it fixed because of the
cost. Since then, the area on my
tongue beside the troubled tooth is red, and a week ago, I noticed a white growth, that is shaped like a cresent. It goes away wtih brushing, but comes back within a few minutes. Is this normal? Could it be a yeast infection? Is the white coating a result of the bad tooth? Why would a section of my tongue turn red?