The Third Clinical Division of Peking University School and Hospital of Stomatology, Beijing, China.
Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, China.
Dent Traumatol. 2020 Oct;36(5):518-525. doi: 10.1111/edt.12563. Epub 2020 May 19.
BACKGROUND/AIM: A new bioceramic material iRoot BP Plus has been introduced and reported to have good biocompatibility, sealing ability and antibacterial activity. It has also been reported to be successfully used for procedures such as pulpotomy, pulp floor perforation repair and so on. However, there are only a few reports on the use of iRoot BP Plus in the management of traumatized teeth with an exposed pulp. The aim of this study was to investigate the clinical and radiographic outcomes of partial pulpotomy with iRoot BP Plus in immature permanent teeth with complicated crown fracture or complicated crown-root fracture.
The study was prospectively designed, and 110 immature permanent teeth with complicated crown fracture or complicated crown-root fracture were randomly allocated into two groups (n = 55). All teeth were clinically and radiographically assessed at 1, 3, 6, 12, 18 and 24 months after partial pulpotomy with iRoot BP Plus (experimental group, n = 50) or calcium hydroxide (control group, n = 49) as the pulp capping agent. Eleven cases were lost during follow up, and 99 teeth were finally analysed.
There were no intergroup differences in the survival rate, survival time, root length and dentin wall thickness. The calcific bridge was significantly thinner in the iRoot BP Plus group than in the calcium hydroxide group (0.97 ± 0.13 mm vs 1.36 ± 0.12 mm; F = 5.128, P = .029).
iRoot BP Plus may be an effective capping material for partial pulpotomy.
背景/目的：一种新型生物陶瓷材料 iRoot BP Plus 已被引入并报道具有良好的生物相容性、密封能力和抗菌活性。它也被报道成功用于活髓切断术、牙髓底穿孔修复等操作。然而，关于 iRoot BP Plus 在处理露髓的创伤性牙齿方面的应用仅有少量报道。本研究旨在探讨 iRoot BP Plus 在治疗伴有复杂冠折或复杂冠根折的未成熟恒牙部分活髓切断术中的临床和放射学效果。
本研究为前瞻性设计，将 110 例伴有复杂冠折或复杂冠根折的未成熟恒前牙随机分为两组（n=55）。所有牙齿均在 iRoot BP Plus（实验组，n=50）或氢氧化钙（对照组，n=49）作为盖髓剂行部分活髓切断术后 1、3、6、12、18 和 24 个月进行临床和放射学评估。11 例在随访期间失访，最终分析了 99 颗牙齿。
两组间的存活率、存活时间、根长和牙本质壁厚度无差异。实验组的钙化桥明显比对照组薄（0.97±0.13mm 比 1.36±0.12mm；F=5.128，P=0.029）。
iRoot BP Plus 可能是部分活髓切断术的有效盖髓材料。
