应用带Ω曲的镍钛弓丝矫治前牙反合张瑾（贵阳医学院附属医院口腔科）前牙反是临床上常见的因上下颌骨和（或）上下颌牙矢状关系不调所致的牙颌畸形，主要表现为前牙覆覆盖关系异常，严重者同时伴有面型异常．对于乳牙期及替牙期的反可采用附双曲舌簧及垫的活动矫治器矫治... Application of Ω curved song of nickel titanium arch anterior arch anti-Zhang Jin (Department of Stomatology, Affiliated Hospital of Guiyang Medical College) anterior teeth is anti-clinically common due to maxillary and mandibular and (or) maxillary and mandibular sagital sag Cause of jaw deformities, mainly as an anterior tooth covered with abnormal relations, in severe cases accompanied by anomalies. For the deciduous period and the anti-tooth can be used with double curved reed and pad active appliance treatment ...