年轻恒牙外伤后的牙髓处理

Pulp treatment of young permanent teeth after traumatic dental injury

牙齿外伤包括牙体硬组织损伤、牙髓组织损伤和牙周组织损伤。牙髓组织损伤可存在于牙齿折断、牙齿移位和牙齿全脱臼。外伤后,牙髓组织的转归可分为牙髓存活、髓腔钙化、牙髓坏死。7～15岁是儿童恒牙外伤的高发年龄,此时其牙齿尚处于生长发育中,牙外伤的治疗和预后远比成人复杂。本文针对年轻恒牙的特点,提出外伤后牙髓损伤判断和处置的对策。

Dental trauma could be largely classified into three groups： Hard tissue injuries, pulp injuries and periodontal tissue injuries. Since pulp injuries are reported in tooth fracture, displacement and avulsion, it is commonly thought that pulp injuries were involved in almost every type of dental injuries. The sequelae of pulp tissue after dental injuries include pulp survival, pulp calcification and pulp necrosis. Dental trauma mostly occurs in 7-15 yearold children. The treatment and prognosis of dental trauma in children are more complicated than those in adults because of the developmental nature of the young permanent teeth. The evaluation of pulp damage and treatment after dental injuries in growing young permanent teeth are discussed in this paper.