Hello! Effect of 1. on dental pulp: At the initial stage of treatment, dental pulp has mild and temporary inflammatory reaction.

2. Influence on the root: During the orthodontic process, the tooth root surface also undergoes the reconstruction activities of absorption and proliferation. After treatment, the root will return to normal by its own repair ability, but if the stress during treatment is too large, it will increase the risk of root absorption.

3. Influence on alveolar bone height: People who have undergone orthodontic treatment will have a small reduction in alveolar bone height. This is because wearing orthodontic appliances will make oral hygiene difficult to maintain and increase the chance of gingivitis.