I have a little black dot by my wisdom tooth i'm 17 and very concerned. it doesn't hurt.

Gum or tooth?: A black dot on any tooth could be a cavity. A black dot on your gum is not a cavity, but it is hard to say what it is. See your dentist, who will know, if on the gum, whether it is new or not. After dentist checks you over, the answer will be forthcoming! We cannot tell by a description alone, what this could be,

Get an exam: It is probably nothing to worry about but the only way to know for sure is to get a dental exam. Depending on your ethnicity, pigment patterns vary in oral mucosa and silver amalgam filings sometimes cause tattooing in adjacent skin. Get it looked at to be sure..

Clinical Examination: It would be best if you visited a dentist for clinical exam in order to find out the cause, diagnosis and treatment if needed.

Where is it: If it's a dark spot on the tooth itself, it may be a cavity. If dark spot on the gum may be a healing traumatic injury (from, for example, a hard bread crust), tattoo from a silver filling, normal pigmentation, and rarely some more serious causes. If you don't smoke tobacco or marijuana and don't abuse alcohol, risks are low. See your Dentist for exam to rule out problem.

Relax: Have your dentist find out what the black dot is. It could be just stain. It could be a cavity, but so what? If it is, get it rstored.