There is no specific figure for lingual correction time. Generally speaking, it takes 1-2 years, which is related to late care. Braces are tools used to correct the regularity of teeth. It takes about 1 to 2 years for the teeth to slowly return to the normal position, that is, the relatively neat position, mainly through the action of external forces. After wearing braces, patients must go to the stomatology department for a follow-up visit once a month. During the follow-up visit, the doctor will make appropriate adjustments according to the recovery of the teeth and the position of the teeth. When your teeth are in order, you can take off your braces. Doctors will also ask patients to bring retainers for a period of time. The main function of retainer is to ensure that the teeth are in the correct position. It is suggested that after wearing the fixed orthodontic device, the self-cleaning ability of the oral cavity decreases, and food residue is easy to attach to the tooth surface and form plaque. It is required to brush your teeth immediately after eating. You can choose a children's toothbrush or a special toothbrush for orthodontics, and you must clean it thoroughly.