Why is my tooth painfully throbbing?
There can be a number of reasons why a tooth painfully throbs. There are nerves that are housed within the root canal of each tooth.
Generally, when a tooth is throbbing spontaneously, such as in the middle of the night with no stimulus, that is a sign of irreversible damage to the nerve of a tooth. This damage can be caused by a large cavity exposing the nerve, or by a crack that extends into the nerve of a tooth.
In this case, the tooth will either require root canal therapy followed by a crown if the patient wishes to save the tooth, or an extraction of the tooth. Because the tooth nerve is infected and damaged irreversibly, doing nothing is not an option and will only lead to further pain and spread of infection.