外伤年轻恒牙的牙髓状态判断及治疗选择

Evaluation of pulp status and selection of treatment in young permanent teeth after trauma

牙外伤是指外力造成的牙体硬组织和(或)根尖周组织的损伤,任何类型的牙外伤都可能会造成牙髓组织病理性改变,从而影响患牙的预后及长期保存,尤其是年轻恒牙,存在牙根发育不完全、根尖孔粗大、牙髓血供丰富等独特的解剖及生理学特点,这为其外伤后的牙髓治疗带来了巨大挑战,同时也为其活髓保存及牙髓再生提供了生理学基础。本文就年轻恒牙外伤后的不同牙髓状态及其相应活髓保存治疗方法作一综述,以期为口腔临床医生提供治疗选择的依据。

Tooth trauma is the damage of hard tissue and(or)periapical tissue caused by external force.It may induce pathological changes of dental-pulp tissue,thereby affecting the prognosis and long-term preservation of the affected teeth.In particular,permanent teeth have the unique anatomical and physiological characteristics of incomplete root development,large apical foramen,and adequate blood supply.Once young permanent teeth suffer from trauma,the treatment of the affected teeth becomes greatly challenging.It also provides a physiological basis for the preservation of living pulp and pulp regeneration.In this paper,we review the different pulp states of young permanent teeth after trauma and the cor‐responding vital-pulp preservation treatment to provide a basis for oral clinicians to select the appropriate treatment strategy.