目的 探讨新型生物陶瓷iRoot的单尖法充填对慢性根尖周炎的疗效。方法 选取2022年1月—2025年1月收治的86例慢性根尖周炎患者,按照治疗方式不同分为两组,对照组（43例）采用AH-PLUS热压胶填充,观察组（43例）采用iRoot SP单尖填充。通过比较两组患者术后24 h和术后7 d疼痛程度、治疗6个月后临床疗效以及并发症情况,评估不同治疗方法的效果。结果 术后24 h,观察组的疼痛程度相较于对照组更低（P<0.05）,而术后7 d两组疼痛程度差异无统计学意义（P>0.05）。治疗6个月后,观察组的疗效优于对照组（P<0.05）。两组并发症发生率无统计学差异（P>0.05）。结论 基于新型生物陶瓷iRoot的单尖法充填可有效减轻慢性根尖周炎患者早期疼痛,提高临床疗效。

Objective To investigate the curative effect of a new type of bioceramic iRoot single tip filling method on chronic apical periodontitis. Methods A total of 86 patients with chronic apical periodontitis treated from January 2022 to January 2025 were selected and divided into two groups according to different treatment methods, a control group （43 cases, AH-PLUS hot pressing glue filling） and an observation group （43 cases, iRoot SP single tip filling）. The effects of different treatment methods were evaluated by comparing the pain degree at 24 h and 7 d after operation, as well as the clinical efficacy and complications after 6 months of treatment between the two groups. Results Compared with the control group, the pain degree of the observation group was lower at 24 h after operation （P<0.05）, but there was no significant difference between the two groups at 7 d after operation （P>0.05）. After 6 months of treatment, the curative effect of the observation group was better than that of the control group （P<0.05）. There was no statistical difference in the incidence of complications between the two groups （P>0.05）. Conclusion The single tip filling method based on the new bioceramic iRoot can effectively reduce the early pain of patients with chronic apical periodontitis and improve the clinical curative effect.