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儿童易发生外伤,往往造成牙脱位、牙槽突骨折及颌骨骨折,同时伴有唇和牙龈等软组织的撕裂、肿胀。为了恢复牙颌的正常解剖形态和功能,又不损伤颌骨内的牙胚,必须选择理想的固定方法。乳牙列牙冠较短,牙根吸收而致乳牙
Children prone to trauma, often resulting in tooth dislocation, alveolar fracture and jaw fractures, accompanied by tears and gums and other soft tissue tear, swelling. In order to restore the normal anatomy and function of the dentition, without damaging the tooth germ in the jaw, we must choose the ideal fixation method. Teeth dentition shorter, root resorption caused by deciduous teeth