Wisdom tooth pain is mostly caused by bacterial infection, while the causes of dental nerve pain include bacterial infection, physical and chemical stimulation, and immune response. 1. Wisdom teeth in the growth process, the site is not correct or partially obstructed, cleaning difficulties, day long excessive bacterial growth, localized inflammation leading to toothache. Common diseases include wisdom tooth pericoronitis and acute pulpitis. And if the wisdom teeth themselves have lesions, such as wisdom teeth caries will also be manifested as toothache. 2. In addition to bacterial infections, dental neuralgia, such as suffering from cold, or high temperature, electric current, laser and other stimuli, damage to the nerve leading to toothache. In addition, herpes zoster virus and human immunodeficiency virus can also attack the nerve and cause pain. If you experience any discomfort, seek medical attention immediately.