Huh? If it is an ordinary correction, how can it be beautiful ... and it is still very painful ... It is recommended not to go to the hospital because the hospital is very embarrassed. I had my upper and lower teeth corrected, and I gave a tooth cleaner and a pair of removable braces for only 3,000 yuan (private clinic), but my classmate only used more than 5,000 yuan to correct his upper teeth in northern Guangdong ... (So, there is a dentist's clinic near Zhongshan Park, where another classmate of mine got it. It seems ok ~

There is a kind of invisible appliance, which is transparent, so it is not obvious, but it is expensive and needs to be replaced constantly according to the continuous correction of teeth. If the teeth are up and down, it is estimated that 4000 won't run away (just an estimate). As for the time ... it depends on the dental condition. I have used 1.5 years, and some people haven't removed it from grade one to grade three ... = = It depends on what the doctor says.