Buck teeth can be corrected early before tooth replacement or orthodontically treated after tooth replacement. Buck teeth are a phenomenon of teeth misalignment, caused by crowding of teeth. If the jaw bone does not match the development of teeth during the period of tooth replacement, the jaw bone cannot accommodate all the teeth well, the teeth will be crowded and misaligned, and buck teeth will appear, and this condition can be treated early. Alternatively, an arch expander can be used to expand the arch to align the teeth. Buck teeth can also be treated with orthodontic treatment after tooth replacement is complete. A gap analysis is required prior to orthodontic treatment, and if there is sufficient space in the jaws, the teeth can be straightened out. If there is not enough space in the jaw, orthodontic treatment can be performed by extracting the teeth to align them. The best age for orthodontics is 12 or 13 years old, after complete tooth replacement is completed. There are traditional orthodontic methods, in which brackets are bonded to the teeth and force is applied using archwires. There is also invisible orthodontics, which is performed by wearing different clear braces. So buck teeth can be corrected by early arch expansion, traditional orthodontics after tooth extraction or invisible orthodontics. For bony buck teeth, early treatment is recommended.