It has been 4 months since I had orthodontic treatment. The reason is that my teeth are a bit protruding and the bite is a bit deep. I am afraid that they will become more protruding in the future, so I still have it done. My two big lower teeth were damaged, so they were extracted very early. The doctor said that because the lower teeth were gone, the upper teeth had grown longer, and I needed to get implants to lower the upper teeth. One tooth would require 2 implants. I even asked for a CT scan of the nail, and the doctor said it would be removed after I had to wear it for about 4 months. I would like to ask if the nails in the teeth are easily knocked off if they are touched while brushing or eating? If it falls off, do I need to install a new one? Your tooth correction requires external traction, so implant nails are needed. Implant nails are widely used in clinical practice, and no irreversible adverse effects have been found on bone or gums. Implant nails can cause inflammation, but the chance is relatively small. The common cause is food residue trapped around the implant nails. Pay more attention to oral hygiene. If the implant nail falls off due to inflammation, it must be re-implanted.