Orthodontic misalignment is one of the most common clinical error (teeth together), mild dental misalignment is probably crowded degree in 2-4mm, generally mild crowding can take several approaches, such as simple movable braces, the cost is probably in a few hundred dollars to 1-2,000 dollars. The moderate crowding is about 4-8mm, and the severe crowding is often >8mm. moderate to severe crowding, often simple movable braces can not achieve the desired effect, to take fixed orthodontic, fixed orthodontic currently due to the complexity of the relatively high, the fee is relatively high, the general clinical probably need about 5000-10000 yuan. There is also a particularly serious crowding, accompanied by skeletal deformities of crowding, only by wearing braces can not fully achieve good results, to combine braces and surgical procedures to treat, the cost may be able to reach about 30,000-50,000 yuan. The cost is about a few thousand dollars, adults 20, 30, 40 years old can also go to do the correction of crowded teeth, but the correction is more difficult, may cost about 50% more than children orthodontics, about 10000 yuan. However, the fees will vary from region to region.