If you have a toothache, you may have a cavity or advanced gum disease. The first sign of a cavity is the pain you feel when you eat something sweet, very cold or very hot. If the inside of the tooth has become irritated it will cause pain in your tooth.
It’s important for you to have a complete oral examination to determine the cause. Other causes of a toothache can include the following:
InfectionGum diseaseGrinding teethTooth traumaAn abnormal bite