iRoot BP Plus用于根尖屏障术的根尖封闭性影响因素研究

doi:10.13701/j.cnki.kqyxyj.2026.03.010

摘要/Abstract

摘要： 目的:比较不同的根尖孔直径以及生物陶瓷材料充填的不同厚度下,iRoot BP Plus进行根尖屏障治疗时根尖微渗漏的情况。方法:收集新鲜完整的下颌单根管前磨牙共100颗,经根管预备、建立根尖孔模型后按2个影响因素分为6个实验组(n=15)和2个对照组(n=5),选择iRoot BP Plus作为根尖屏障充填材料,实验组分为2个方向:其中A、B、C组为根尖孔直径组(0.5 mm、0.7 mm、1.0 mm),D、E、F组为根尖屏障材料充填厚度组(封闭根尖3 mm、4 mm、5 mm),G、H组分别为阳、阴性对照组。经过染料渗透实验后,比较iRoot BP Plus在不同情况下行根尖屏障术的根尖微渗漏情况。结果:在根尖孔直径组中,B组和C组的根尖微渗漏值大于A组、有统计学差异(P＜0.001),但B组和C组间渗漏值无统计差异(P>0.05)。在根尖屏障材料充填厚度组中,D组、E组和F组渗漏值无统计学差异(P>0.05)。结论:iRoot BP Plus作为根尖屏障术充填材料,当患牙根尖孔直径为0.5 mm时,生物陶瓷材料充填厚度3~5 mm时根尖封闭效果并没有显著差异。在根尖孔直径达到0.7、1.0 mm条件下,根尖区会有微渗漏的发生。

关键词: iRoot BP Plus, 根尖屏障, 微渗漏

Abstract: Objective: To investigate the apical microleakage of iRoot BP Plus in apical barrier therapy under different apical foramen diameters and filling thicknesses of bioceramic materials. Methods: Up to 100 fresh and complete mandibular single-root premolars were collected. After root canal preparation and establishment of apical foramen models, they were divided into 2 influencing factors: 6 experimental groups (n=15) and 2 control groups (n=5). iRoot BP Plus was selected as the apical barrier filling material. Groups A, B, and C were the apical foramen diameter groups (0.5 mm, 0.7 mm, 1.0 mm); groups D, E, and F were the apical barrier material filling thickness groups (3 mm, 4 mm, 5 mm), group G was the positive control group, and group H was the negative control group. After dye penetration test was performed on the filled teeth, apical sealing ability of iRoot BP Plus in different conditions was compared. Results: In the apical foramen diameter groups, the apical microleakage values of groups B and C were greater than that of group A (P<0.001), but there was no obvious difference in leakage values between groups B and C (P>0.05). In the apical barrier material filling thickness groups, there was no obvious difference in leakage values among groups D, E, and F (P>0.05). Conclusion: When iRoot BP Plus is used as the filling material for apical barrier surgery, when the apical foramen diameter is 0.5 mm, there is no significant difference in the apical sealing effect with filling thicknesses of 3-5 mm. However, when the apical foramen diameter increases to 0.7 mm and 1.0 mm, microleakage occurs in the apical region.

Key words: iRoot BP Plus, apical barrier, microleakage

沈苏倩, 马心笛, 许可, 徐小茵, 陆乐. iRoot BP Plus用于根尖屏障术的根尖封闭性影响因素研究[J]. 口腔医学研究, 2026, 42(3): 230-234.

SHEN Suqian, MA Xindi, XU Ke, XU Xiaoyin, LU Le. Analysis of Apical Sealing Ability of iRoot BP Plus in Apical Barrier Technique[J]. Journal of Oral Science Research, 2026, 42(3): 230-234.

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