The protruding mouth was a bit severe, so I had tooth extraction corrected (a total of 4 upper and lower teeth, up to the wisdom teeth). Before orthodontic condition, the protruding mouth, front teeth, straight teeth, extra teeth, etc. After correction, the protruding mouth went in, but some remained. The front teeth were almost straight, but this changed into a nice looking shape. dent disappears. It was originally scheduled for 2 years, but it was almost 4 years ago. (I keep paying the monthly treatment fee) For those who have a lot of protruding mouth and correct it, I recommend that you check how far it can be improved and do it. If you do it wrong, you may not get the results you want. + What will be the additional cost when the expected proofreading period is over It would be better to complete the proofreading before entering. Or, like me, you have to keep paying monthly treatment fees and pay more than 1 million won to the dentist.