儿童活泼好动,玩闹和运动中难免造成各种损伤。牙外伤是需要父母特别关注的,因为我们的恒牙是不可能再生的。儿童牙外伤是指牙齿受急剧外力作用,特别是打击或撞击所引起的牙体、牙髓(牙神经)和牙齿支持组织的损伤。牙体的损伤表现为牙齿结构的缺损,牙神经的损伤表现为牙齿的变色、疼痛,牙龈肿胀等,而牙齿支持组织的损伤表现为牙齿的松动、位置的变化。 Children lively, playful and exercise will inevitably cause a variety of injuries. Tooth trauma requires special attention from parents, because our permanent teeth are impossible to regenerate. Tooth trauma in children refers to the teeth by the dramatic external force, especially the striking or impact caused by teeth, pulp (tooth nerve) and tooth support tissue damage. Tooth injury is manifested by the loss of the tooth structure. Tooth nerve damage is manifested by discoloration, pain, gingival swelling, and the like. The damage of the tooth support tissue is caused by the loosening of teeth and the change of position.