Tooth ache is commonly known to be caused by bacterial infection. However there are other types of toothaches that can indicate problems such as sensitivity of teeth and gums, cavity or a damaged nerve. A sharp shooting pain is mainly an indicator of sensitivity, tooth cavity, inflamed tissue or a cracked tooth. A severe persistent pain experienced in and around the gum is a result of nerve damage. When this pain is accompanied by swollen face, it can be a sign of severe infection, injured gum or growing wisdom tooth.