Teeth will loosen. Under normal circumstances, every tooth has a certain physiological motivation to relieve chewing pressure and prevent tooth trauma. The increase of tooth looseness during orthodontic treatment is a normal reaction. Teeth are fixed on alveolar bone with periodontal ligament, so teeth need to move, alveolar bone and periodontal ligament need to be rebuilt, so teeth are loose. However, if orthodontics moves to the normal position, the teeth can reattach the periodontal ligament through their own repair ability, making it firm and will not cause permanent damage. However, it is necessary to avoid excessive stress.
Root resorption is a common harm to orthodontic teeth, which is mainly caused by physiological activities such as absorption and hyperplasia of root surface during orthodontic treatment. Generally speaking, after treatment, the root will gradually return to normal. However, when some doctors are too harsh on patients, the probability of gum absorption will increase.
In the initial stage of treatment, the gum will have a slight and temporary reaction, and there will be pain or discomfort in the first few days of exertion, but the experiment shows that this effect is meaningless in clinic, and the pain reaction disappears in 2 ~ 3 days. In addition, after orthodontic treatment, patients' teeth generally turn yellow. Because the appliance should stick to the teeth. There is glue after removal. Doctors can clean with a dental drill, but the enamel on the tooth surface will also be destroyed.