Many people correct their teeth because they are too crowded and irregular. To make a tooth (upper tooth or lower tooth), you usually need to pull out two teeth, and if you have a full mouth, you will have four.

I have corrected and pulled out my teeth, and there seems to be no adverse effect. But it will hurt more when pulling teeth and applying anesthetic.

If you don't want to have your tooth extracted, you can tell the doctor that you can do the same correction. But the effect is not as good as after tooth extraction.