Hu Xiaoyan, Li Yuexiang, Xu Jianguang, Li Quanli, Wang Run
Key Lab. of Oral Diseases Research of Anhui Province, College & Hospital of Stomatology, Anhui Medical University, Hefei, China.
Dent Traumatol. 2023 Apr;39(2):165-172. doi: 10.1111/edt.12804. Epub 2022 Nov 21.
BACKGROUND/AIMS: Calcium silicate cements have been widely used for pulpotomies in immature permanent teeth with complicated crown fractures due to their superior properties. However, few studies have evaluated the long-term outcomes of white mineral trioxide aggregate (WMTA) and iRoot BP Plus for partial pulpotomies. The aim of this study was to investigate the long-term clinical and radiographic outcomes of WMTA and iRoot BP Plus for partial pulpotomies in immature permanent incisors with complicated crown fractures.
Children who had partial pulpotomies of immature permanent incisors with complicated crown fractures using WMTA or iRoot BP Plus as capping agents were enrolled. Eighty immature permanent incisors in 68 children (aged 8-13 years) were included. They were divided into two groups (WMTA and iRoot BP Plus) according to the capping agents. Clinical and radiographic information was collected during a 5-year follow-up period. Study data were analyzed using Chi-square tests or Fisher exact tests.
The clinical and radiographic success rates in the WMTA (n = 36) and iRoot BP Plus groups (n = 44) were 94.4% versus 97.7% and 88.9% versus 97.7%, respectively (both p < .05). The average observation period was 74.5 ± 13.2 months and 61.9 ± 1.6 months in the WMTA and iRoot BP Plus groups, respectively (p < .01). Five cases presented with periapical radiolucencies. The WMTA group had four cases of pulp canal calcification (11.1%), while the iRoot BP Plus group had two cases (4.6%). There was crown discolouration in all cases in the WMTA group, but none in the iRoot BP Plus group.
Both WMTA and iRoot BP Plus had favorable outcomes in promoting physiological development and maintaining the basic functions of immature permanent incisors with complicated crown fractures. As a partial pulpotomy material, iRoot BP Plus may be more suitable for the esthetic zone than WMTA.
背景/目的：硅酸钙水门汀因其优良特性已广泛应用于冠折复杂的年轻恒牙活髓切断术。然而，很少有研究评估白色矿物三氧化物聚合体（WMTA）和iRoot BP Plus用于部分活髓切断术的长期效果。本研究的目的是调查WMTA和iRoot BP Plus用于冠折复杂的年轻恒牙切牙部分活髓切断术的长期临床和影像学效果。
纳入使用WMTA或iRoot BP Plus作为盖髓剂对冠折复杂的年轻恒牙切牙进行部分活髓切断术的儿童。包括68名儿童（年龄8 - 13岁）的80颗年轻恒牙切牙。根据盖髓剂将其分为两组（WMTA组和iRoot BP Plus组）。在5年随访期内收集临床和影像学信息。研究数据采用卡方检验或Fisher精确检验进行分析。
WMTA组（n = 36）和iRoot BP Plus组（n = 44）的临床和影像学成功率分别为94.4%对97.7%以及88.9%对97.7%（均p < 0.05）。WMTA组和iRoot BP Plus组的平均观察期分别为74.5 ± 13.2个月和61.9 ± 1.6个月（p < 0.01）。5例出现根尖透影区。WMTA组有4例根管钙化（11.1%），而iRoot BP Plus组有2例（4.6%）。WMTA组所有病例均出现牙冠变色，而iRoot BP Plus组无此情况。
WMTA和iRoot BP Plus在促进冠折复杂的年轻恒牙切牙生理发育和维持其基本功能方面均有良好效果。作为部分活髓切断术材料，iRoot BP Plus可能比WMTA更适用于美观区域。
