口腔医学研究

口腔医学研究 ›› 2022, Vol. 38 ›› Issue (1): 56-59.DOI: 10.13701/j.cnki.kqyxyj.2022.01.012

• 牙髓病学研究 • 上一篇    下一篇

iRoot SP单尖充填后即刻与延迟桩道预备对根尖封闭性能的研究

王静*, 孙亚丽, 殷金萍, 范丽瑶, 孟伟涛   

  1. 郑州大学第一附属医院口腔医学中心 河南 郑州 450000
  • 收稿日期:2021-08-16 出版日期:2022-01-28 发布日期:2022-01-21
  • 通讯作者: * 王静,E-mail:181310247@qq.com
  • 作者简介:王静(1978~ ),女,河南郑州人,副主任医师,硕士,主要从事口腔内科临床治疗工作。
  • 基金资助:
    河南省医学科技攻关计划(联合共建)项目(批准号:LHGJ20190201)

Effects of Immediate and Delayed Post Space Preparation on Apical Sealing Ability of iRoot SP Single-Cone Obturation technique

WANG Jing*, SUN Yali, YIN Jinping, FAN Liyao, MENG Weitao   

  1. Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
  • Received:2021-08-16 Online:2022-01-28 Published:2022-01-21

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摘要： 目的:评价iRoot SP单尖充填根管后即刻与延迟桩道预备的根尖封闭效果。方法:收集因正畸拔除的70颗单根管前磨牙,截冠后随机分为8组。A1、B1、C1组:AH Plus+热牙胶充填(n=10);A2、B2、C2组:iRoot SP+单尖充填(n=10);D、E组分别为阳性、阴性对照组。A1、A2组行即刻桩道预备,B1、B2组行延迟桩道预备,C1、C2组根管充填后不进行桩道预备。使用印度墨水染色技术,透明牙技术评价不同时机桩道预备后根尖微渗漏情况。结果:各实验组均有染料渗入,相同充填方法下,不同桩道预备时机的各组间(A1-B1,A2-B2)差异无显著性(P>0.05);而相同桩道预备时机,不同充填方法的各组间(A1-A2,B1-B2)也无显著性差异(P>0.05)。无桩道预备组与即刻桩道预备组(C1-A1,C2-A2)之间的比较,差异无统计学意义(P>0.05),但与延迟桩道预备组(C1-B1,C2-B2)组间比较有差异(P<0.05)。结论:iRoot SP单尖充填和AH Plus热牙胶充填具有相似的根尖封闭效果;iRoot SP单尖充填后即刻桩道预备与延迟桩道预备的根尖封闭性无差异。

关键词: iRoot SP, 单尖技术, 微渗漏, 桩道预备

Abstract: Objective: To evaluate the effect of immediate and delayed post space preparation on apical sealing ability of iRoot SP single-cone obturation technique. Methods: Seventy single root premolars removed by orthodontics were collected, and randomly assigned to eight groups after crown resection. The root canals in groups A1, B1and C1were obturated with warm vertical technique, and the groups A2, B2 and C2 were obturated with single-cone technique.The canals in the former groups(A1, B1and C1) were filled with AH Plus and the latter groups(A2, B2andC2) were filled with iRoot SP, respectively. The group D was positive control and the group E was negative control. The post space was prepared either immediately after obturation groups (A1 and A2) or 7 days later groups (B1 and B2), and the groups (C1 and C2) were not prepared.The extent of dye penetration was evaluated in different groups by Indian ink dyeing treatment and transparent dental technology. Results: Dye penetration was observed in all experimental groups. Under the same filling method with different post space preparation, there were no significant differences(P>0.05) between groups (A1-B1, A2-B2) . Similar results(P>0.05) were also seen between groups (A1-A2, B1-B2) under different filling methods with the same post space preparation.There were no significant differences(P>0.05) between the non post space preparation groups and the immediate post space preparation groups (C1-A1,C2-A2), but there were significant differences(P<0.05) between the non post space preparation groups and the delayed post space preparation groups(C1-B1,C2-B2). Conclusion: Both iRoot SP with single-cone technique and AH Plus with warm vertical technique had similar performances on root canal seal. There was no significant difference between immediate and delayed post space preparation on the apical sealing ability of iRoot SP single-cone obturation technique.

Key words: iRoot SP, single-cone technique, microleakage, post space preparation