what causes tooth pain
One less common, but significant cause of tooth pain is a sinus infection. If only your upper teeth on both sides of your face are in pain, sinusitis could be the culprit. This sort of toothache is usually accompanied or preceded by nasal congestion and tenderness around your sinuses.
As for tooth pain, it is caused by a reaction of the nerves inside a tooth's pulp chamber with the severity dependent upon the type and degree of the stimulus. What follows are some examples of symptoms you may be feeling and their possible causes.