Abstract：
OBJECTIVE: To investigate the clinical effect of implant-assisted dental intentional replantation (IR) for the treatment of \"drifted\" anterior periodontally hopeless teeth (PHT).
METHODS: The present authors recruited 22 patients with stage III/IV periodontitis who suffered drifting of the maxillary anterior teeth, with a total of 25 teeth. The PHT were extracted for in vitro root canal treatment (RCT). The root surface was smoothed and the shape was trimmed, and the alveolar socket was scratched. The dental implant system was used to prepare the alveolar socket according to the direction, depth and shape of the tooth implantation. The PHT were reimplanted into the prepared alveolar socket. The periodontal indicators were analysed statistically before and after surgery.
RESULTS: Twenty-two patients who completed the full course of treatment, with a total of 25 PHT, had a successful retention rate of 88%. Mean periodontal probing depth (PPD) decreased by 2.880 ± 0.556 mm and 3.390 ± 0.634 mm at 6 months and 1 year, respectively, and clinical attachment loss (CAL) decreased by 2.600 ± 0.622 mm and 2.959 ± 0.731 mm at the same time points, respectively, showing significant improvement (P < 0.05).
CONCLUSIONS: Dental implant system-assisted IR can effectively preserve \"drifted\" natural PHT in patients with stage III/IV periodontitis.
METHODS: The present authors recruited 22 patients with stage III/IV periodontitis who suffered drifting of the maxillary anterior teeth, with a total of 25 teeth. The PHT were extracted for in vitro root canal treatment (RCT). The root surface was smoothed and the shape was trimmed, and the alveolar socket was scratched. The dental implant system was used to prepare the alveolar socket according to the direction, depth and shape of the tooth implantation. The PHT were reimplanted into the prepared alveolar socket. The periodontal indicators were analysed statistically before and after surgery.
RESULTS: Twenty-two patients who completed the full course of treatment, with a total of 25 PHT, had a successful retention rate of 88%. Mean periodontal probing depth (PPD) decreased by 2.880 ± 0.556 mm and 3.390 ± 0.634 mm at 6 months and 1 year, respectively, and clinical attachment loss (CAL) decreased by 2.600 ± 0.622 mm and 2.959 ± 0.731 mm at the same time points, respectively, showing significant improvement (P < 0.05).
CONCLUSIONS: Dental implant system-assisted IR can effectively preserve \"drifted\" natural PHT in patients with stage III/IV periodontitis.
摘要：
目的：探讨种植体辅助牙有意再植(IR)治疗前牙周无希望牙(PHT)的临床效果。
方法：作者招募了22例III/IV期牙周炎患者，这些患者患有上颌前牙漂移，总共有25颗牙齿。提取PHT用于体外根管治疗（RCT）。使根部表面平滑并修剪形状，牙槽窝被划伤了.牙种植系统用于根据方向制备牙槽，牙齿植入的深度和形状。将PHT重新植入制备的肺泡窝中。对手术前后的牙周指标进行统计学分析。
结果：完成整个疗程的22名患者，总共25个PHT，成功保留率为88%。平均牙周探诊深度(PPD)在6个月和1年时分别下降2.880±0.556mm和3.390±0.634mm,分别,而临床附着丧失(CAL)在同一时间点分别下降2.600±0.622mm和2.959±0.731mm,分别,显着改善(P<0.05)。
结论：牙种植系统辅助IR可有效保护III/IV期牙周炎患者的“漂移”自然PHT。
方法：作者招募了22例III/IV期牙周炎患者，这些患者患有上颌前牙漂移，总共有25颗牙齿。提取PHT用于体外根管治疗（RCT）。使根部表面平滑并修剪形状，牙槽窝被划伤了.牙种植系统用于根据方向制备牙槽，牙齿植入的深度和形状。将PHT重新植入制备的肺泡窝中。对手术前后的牙周指标进行统计学分析。
结果：完成整个疗程的22名患者，总共25个PHT，成功保留率为88%。平均牙周探诊深度(PPD)在6个月和1年时分别下降2.880±0.556mm和3.390±0.634mm,分别,而临床附着丧失(CAL)在同一时间点分别下降2.600±0.622mm和2.959±0.731mm,分别,显着改善(P<0.05)。
结论：牙种植系统辅助IR可有效保护III/IV期牙周炎患者的“漂移”自然PHT。
