Solving anterior crossbite with alignersChris Chang Ortho717

This is a CIII malocclusion with a shallow overbite treated with aligners. A CIII, crowding case usually indicate extractions. First create space by extractions and then design CIII mechanics by combining BS screws and CIII elastics. 這是一個用隱適美改善三類咬合合併shallow overbite的案例。通常CIII合併牙亂的案例會需要透過拔牙來增加空間，然後再透過BS screws和CIII elastics組成的CIII mechanics來矯正。