Hello, according to your specific situation, it usually takes at least one and a half years, and the cost is at least 20 thousand yuan. Imported invisible appliances need about 40 thousand, domestic invisible appliances need about 30 thousand, and generally need 1 year to more than 2 years. Uneven teeth not only affect the appearance, but also are harmful to the health of teeth, and some even affect pronunciation, so it is necessary to correct teeth. Orthodontics contains a lot of contents, and all kinds of irregular teeth, abnormal shapes and colors can be improved by some technical means. There are many ways of orthodontics, such as porcelain veneer, resin veneer and porcelain teeth. According to the different conditions of teeth and different needs of individuals, different treatment methods can be carried out.

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