关键词: 全脱出, 再植, 序列治疗

Abstract: Tooth avulsion，one of the most severe dental traumas in childhood，usually requires sequential treatment covering emergency management，clinical treatment and long-term follow-up. Immediate replantation or correct storage of an avulsed tooth at the accident site will lead to a favorable prognosis. Thus，popularizing first aid instructions to the public is crucial. The clinical treatment plan should include periodontal，endodontic and adjuvant therapy. The periodontal treatment should be planned according to whether the avulsed tooth has been replanted，whether the replantation is correct，whether occlusal trauma exists and whether the alveolar bone is fractured. The endodontic treatment plan is decided based on the root development stage，extra-oral dry time and storage medium. For teeth with open apices，the risk of infection-related root resorption should be carefully weighed against the chances of pulp revascularization. Long-term follow-up and timely management of complications are also essential. So，the present article intends to describe the things mentioned above to provide references for clinical diagnosis and treatment.

Key words: avulison, replantation, sequential treatment