Why didn’t I extract premolars? #blackshaqgoodsmi… 2021-03-27 by 굿스마일치과 Why didn’t I extract premolars? #blackshaqgoodsmile #totalarchdistalization #tsads#tads#굿스마일치과교정과 #miniimplants#miniscrews #orthodontist http://instagram.com/p/CKpfEpuDk_k