See a dentist: It might be nothing, like a small silver filling which appears black and through the tooth casts a grey shadow or, it could be a cavity. The black spot being the point of entry and the grey area undermined with decay. Your best bet it to see a dentist and evaluate the situation to see if it needs treatment.
Answered 5/6/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
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