埋伏牙是引起错畸形的原因之一,若选择拔除,则违背了保存自然牙及牙列的原则,不仅影响美观,还会给患者的口腔功能和心理造成不良影响,尤其不利于年轻患者的心身健康。替牙期是矫治前牙埋伏的最佳时期,此时进行矫治可阻断错畸形进一步发展~([1])。2×4矫治技术的主要特点是,无须在牙冠较短、黏结力较差的乳牙上黏结托槽,可早期对替牙期患者进行矫 Implicit denture malocclusion caused one of the reasons, if you choose to remove, it is contrary to the principle of preserving the natural teeth and dentition, not only affects the appearance, but also to the patient’s oral function and psychological adversely affect, in particular, is not conducive to young patients Physical and mental health. Teeth dentition is the best time to treat anterior teeth ambush, orthodontic treatment at this time can block the further development of deformity ~ ([1]). The main feature of the 2 × 4 orthodontic technique is that it is not necessary to bond the brackets to deciduous teeth with short crowns and poor cohesion,