Each tooth is connected with the adjacent alveolar bone through the periodontal ligament with collagen tissue structure, and there are abundant blood vessels and nerves in the periodontal ligament. When orthodontic force is applied to teeth, if the force is appropriate, patients will feel a little pain or no feeling immediately. Typical pain lasts for 2-4 days, then disappears until the orthodontic appliance is put on again. This is one of the causes of toothache after orthodontics.

Causes of toothache after orthodontics:

The cause of toothache after orthodontics is obviously the ischemic area in periodontal ligament, and aseptic necrosis (transparency change) occurred in the ischemic area. Can't bear the pressure, suggesting that there is inflammation at the apex of the heart. Usually, other things being equal, the greater the strength, the more obvious the pain, but there are great individual differences in any type of pain. Some patients exert too much force, but have little or no pain. Others feel quite uncomfortable even using light force. This is also the cause of toothache after orthodontics.