Gum pain above only one tooth...advice please?

Is there a bump?: If you are having pain above a tooth, it is possible that you may be developing an abscess, which happens at the end of the root, underneath the gums. If there is a bump above (or below on a lower) the tooth, this may be a gum boil, where infection collects without anywhere to go. Have a dentist evaluate this asap to avoid a true dental emergency with swelling and severe pain.