2026-06-27 14:18 浏览次数 53
下颌前突
An undershot bite in which two or more of the upper incisors lose contact with two or more of the lower incisors is a disqualification.
下颚突出式咬和如果有两颗或两颗以上的上门牙无法与下门牙接触,属于失格。