Is there anything i can do about my discoloured tooth?

See Cosmetic Dentist: There are a number of causes of discolored teeth. You need a cosmetically oriented dentist to diagnose the cause and suggest possible solutions.

Yes: Bonded coating, whitening, porcelain veneer, and some of the things that can be done. Get a dental examination to determine what is appropriate for your situation.

How many: If it is just one tooth, then it may be discolored from a previous traumatic incident, possibly years ago. Have the pulp tested to see if it is vital or necrotic( dead) it may be necessary to get a root canal prior to other treatment.

Absolutely: There are a lot of options, which vary from simple whitening all the way to porcelain veneers. Ask your dentist for all of your options and the pros and cons of each.