常见例句雙語例句Objective:The purpose of this study was to approach the feasibility of the removable appliance combinated with buccal shield to treat the unilateral posterior crossbite.目的：探討附頰屏的墊矯治器進行單側後牙擴弓，治療單側後牙反的可行性。 返回 buccal crossbite