What causes a toothache at night?

Toothache right at night may be related to acute pulpitis, periodontitis, acute apical periodontitis, and wisdom tooth pericoronitis.
1. Acute pulpitis: the typical pain of acute pulpitis is paroxysmal, spontaneous pain, and the pain is affected by the position of the body, and the pressure in the pulp cavity of the teeth increases at night, resulting in aggravation of pain at night.
2. Periodontitis: Periodontitis is an inflammation that occurs around the periodontal support tissues. If you suffer from periodontitis, you will be more sensitive to hot and cold stimuli, and the pain will be aggravated by the stimulation of cold air at night.
3. Acute apical periodontitis: Acute apical periodontitis can also cause spontaneous severe pain, which can be aggravated by clenching teeth or at night.
4. Wisdom tooth pericoronitis: When wisdom tooth pericoronitis occurs, the gums around the wisdom tooth will be swollen and uncomfortable, and at night there will be obvious pain.
There may be other reasons, tooth pain at night it is best to go to the hospital stomatology in a timely manner, to clarify the cause of the disease, symptomatic treatment.