See the surgeon: It is hard to diagnose or make any comment without seeing the lesion. It is best to have an oral surgeon look at it and if necessary make a biopsy so you don't worry about it.
Answered 3/26/2013
5.6k views
Possibly: Dark spots occurring "overnight" is not a good thing. Go back to your dentist or oral surgeon and see about a biopsy of the spot being done
Answered 8/31/2013
5.6k views
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