Yang Zizhen, Li Qiang, Pang Yunqing
Gansu Provincial Clinical Research Center for Oral Diseases & Dept. of Pediatric Dentistry, Hospital of Stomatology, Lanzhou University, Lanzhou 730000, China.
Gansu Province Clinical Research Center for Oral Diseases & Dept. of Periodontics, Hospital of Stomatology, Lanzhou University, Lanzhou 730000, China.
Hua Xi Kou Qiang Yi Xue Za Zhi. 2025 Aug 1;43(4):534-540. doi: 10.7518/hxkq.2025.2024395.
Dental trauma is one of the relatively common emergencies in clinical dental practice, with a high incidence rate, and the maxillary central incisors are the most frequently affected. This article reports a case of a 17-year-old female patient who suffered traumatic complete avulsion of teeth 11 and 21, with tooth 21 lost after avulsion. The prognosis for replantation was poor due to the absence of the buccal alveolar bone wall of tooth 11. Therefore, tooth 11 was treated with extracorporeal root canal therapy and then replanted into the alveolar socket of tooth 21, which had better conditions, followed by elastic splint fixation. After 20 months of follow-up observation, the affected tooth maintained a stable functional position, with no periapical inflammation or ankylosis observed. Subsequently, delayed implant restoration at the site of tooth 11 was performed, ultimately achieving a favorable treatment outcome. This case may provide new insights and references for future clinical practices in tooth replantation.
牙外伤是临床牙科实践中较为常见的急症之一，发病率较高，其中上颌中切牙最常受累。本文报道了1例17岁女性患者，其11和21牙发生外伤性完全脱位，21牙脱位后丢失。由于11牙颊侧牙槽骨壁缺失，再植预后较差。因此，对11牙进行体外根管治疗后，再植入条件较好的21牙牙槽窝内，然后进行弹性夹板固定。经过20个月的随访观察，患牙保持功能位置稳定，未观察到根尖周炎或牙 ankylosis。随后，在11牙部位进行了延期种植修复，最终取得了良好的治疗效果。该病例可为今后牙再植的临床实践提供新的思路和参考。
