How to rid of yellow stain on teeth?

Bleaching is: Probably the easiest way - either over the counter or professionally through your dentist. Always best to see a dentist for a check up first to make sure no other problems exist prior to starting.

Depends: If the stain is on the tooth surface then the stain may be removed with a professional cleaning. If the stain or yellow is inside the tooth ie dentin, then you will require bleaching. You will need to get a routine preventive visit with your dentist to know which is best for you.