Estimate: 11.5 million won for aso surgery. Perhaps because it is a hospital famous for aso chins, there were 5 to 6 people waiting even though I went on a weekday morning . (There was also one Chinese person...) The doctor was gentle and kind. There is no need to have a protruding chin, and it won't be effective. All you need to do is protruding mouth surgery... (estimate: 11.5 million won) They say you can find out whether you need to correct it or not after doing ASO surgery. .. Even people who do not need to have their teeth straightened may need it after ASO surgery.. It is a very famous hospital and they have a lot of experience, so I have confidence in their skills..