2. Osteoclast refers to the overgrowth of mandible, and the effect of simple orthodontic treatment is poor, so it is necessary to consider the combined treatment of orthognathic surgery and orthodontics. Osteotomy should be performed in adulthood, that is, after the age of 22 (during which the mandible completely stops developing). If necessary, you can have an operation at your age.
The characteristics of combined therapy are as follows: first, find a regular medical department with orthognathic surgery strength, and the orthodontist in the orthodontics department of this hospital will be the receiving case of combined therapy, and invite the orthognathic surgeon to consult and work out a treatment plan together. Then implement the treatment plan: wear the appliance first, and then operate after a period of time. The appliance can't be removed during the operation, and it is always worn, and orthodontic treatment will continue after the operation. This is combination therapy.
3. The condition that the teeth cover the sky means that only the teeth are tilted or misaligned, which is suitable for simple orthodontic treatment and has a good effect.