目的 探究生物活性陶瓷iRoot BP Plus治疗年轻恒前牙复杂冠折行牙髓切断术的效果。方法 选择2021年1月—2025年1月82例儿童年轻恒前牙复杂冠折行牙髓切断术患者,通过随机分组法分为两组,对照组41例患儿采用矿物三氧化物聚合体盖髓,观察组41例患儿采用生物活性陶瓷iRoot BP Plus盖髓,比较各组患儿的治疗效果、不良反应、疼痛症状、变色情况、根管长度、根管壁厚度。结果 观察组治疗成功率大于对照组（P<0.05）,观察组不良反应发生率小于对照组（P<0.05）。术后7 d,1、3、6个月,观察组疼痛症状与变色评分低于对照组（P<0.05）;术后1、3、6个月,观察组根管长度、根管壁厚度均高于对照组（P<0.05）。结论 儿童年轻恒前牙复杂冠折行牙髓切断术中采用生物活性陶瓷iRoot BP Plus盖髓,可提高治疗效果,减少不良反应,减轻疼痛症状与变色情况,有效改善根管情况。

Objective To explore the effect of bioactive ceramic iRoot BP plus in the treatment of young permanent anterior teeth with complex crown fractures among children undergoing pulpotomy. Methods From January 2021 to January 2025, a total of 82 cases of young permanent anterior teeth with complex crown fractures undergoing pulpotomy were selected and randomly divided into two groups： 41 cases in the control group were treated with mineral trioxide polymer pulp capping, and 41 cases in the observation group were treated with bioactive ceramic iRoot BP Plus pulp capping. The treatment effect, adverse reactions, pain symptoms, discoloration, root canal length, and root canal wall thickness of children in the two groups were compared. Results The treatment success rate of the observation group was higher than that of the control group （P<0.05）, and the incidence of adverse reactions of the observation group was lower than that of the control group （P<0.05）. The pain symptoms and discoloration scores of the observation group were lower than those of the control group at 7 d, 1 month, 3 months, and 6 months after operation （P<0.05）. The root canal length and root canal wall thickness of the observation group were greater than those of the control group at 1 month, 3 months, and 6 months after operation （P<0.05）. Conclusion The application of bioactive ceramic iRoot BP Plus pulp capping in pulpotomy of young permanent anterior teeth with complex crown fractures in children can improve the treatment effect, reduce adverse reactions, alleviate pain symptoms and discoloration, and effectively improve the root canal condition.