Second, it is related to the selected corrective materials. Ordinary steel wire brackets are cheaper, such as self-locking brackets, and invisible correction is more expensive.
Third, it is also related to the hospital you choose. Large hospitals are well equipped and doctors are highly skilled. So the price is higher, but it is guaranteed.
Fourth, it is also related to the local consumption level and prices.
Let me give you an example. My place is Ningbo, which is also a relatively big city. The ordinary bracket correction here is about 8000 yuan. Invisible correction is about 22,000. The revised price of smaller cities is slightly lower.
Hope to adopt