临床上对于牙髓暴露的恒牙大多选择传统性根管治疗。然而 ,对牙根尚未形成的恒牙立即进行传统性根管治疗常会造成牙本质形成不足使牙齿产生断裂现象[1] 。因此 ,临床医生在面对牙根未形成恒牙的牙髓暴露病例时 ,常考虑选择活髓治疗 ,以期望保留牙本质的生理性增生及牙根的继续 Clinically, most of the permanent teeth exposed to the pulp choose traditional root canal therapy. However, the traditional root canal treatment of permanent teeth, which have not been formed yet, often leads to tooth dentition rupture caused by insufficient dentin formation [1]. Therefore, clinicians in the face of the root of the permanent teeth is not the formation of permanent teeth exposed cases, often consider the choice of live pulp treatment in order to retain the physiological proliferation of dentin and root to continue