Root Canal Complication
A toothache or tooth pain is most often caused when the nerve to a tooth is irritated, but there are numerous other reasons for a person to experience tooth pain. Risk factors for toothache include dental infection, gum disease, plaque, dental decay, injury, cracked teeth, poorly placed fillings or crowns, failing or leaking fillings or crowns, loss of a tooth (including tooth extractions), temporomandibular joint (TMJ) disorders, and obstructive sleep apnea. There are instances, however, where pain originating from outside the mouth radiates to the mouth, thus giving the impression that the pain is of tooth origin. This often happens when there is a problem with the jaw joint (temporomandibular joint or TMJ), ears, nerves, sinuses, or muscles. Occasionally, heart problems can give a sensation of tooth pain. Pregnancy can also be a risk for tooth problems that lead to pain. Due to fluctuating hormone levels during pregnancy, pregnancy gingivitis and tooth decay can occur.