Unreasonable orthodontic treatment will lead to malabsorption of alveolar bone or root, and will also cause rebound of the effect (for example, meiosis requires tooth extraction without tooth extraction, and the treatment is ineffective).
As for the expenses, a person I know spent 1800 yuan in a clinic in Donghe for correction, and now he will go back soon. . . . The orthodontics department of one machine is definitely more expensive than this, and I can't say anything else. . . .