华西口腔医学杂志 ›› 2025, Vol. 43 ›› Issue (2): 204-211.doi: 10.7518/hxkq.2025.2024289

• 临床研究 • 上一篇    下一篇

3种生物陶瓷类根管封闭剂根尖封闭性的体外研究

朱静雅1,2(), 黄日鸿1,3, 曾祥倪1,3, 蒋丽1,3, 何飞1()   

  1. 1.深圳市人民医院(暨南大学第二临床医学院,南方科技大学 第一附属医院)口腔科,深圳 518020
    2.深圳市第三人民医院(南方科技大学第二附属医院)口腔科,深圳 518112
    3.暨南大学口腔医学院口腔医学系,广州 510632
  • 收稿日期:2024-08-07 修回日期:2024-12-02 出版日期:2025-04-01 发布日期:2025-03-25
  • 通讯作者: 何飞 E-mail:jingya1205@163.com;hefeixqkq@aliyun.com
  • 作者简介:朱静雅,医师,硕士,E-mail:jingya1205@163.com
  • 基金资助:
    深圳市自然科学基金(JCYJ20210324114005016)

Comparison of apical sealing ability of three bioceramic root canal sealers in vitro

Zhu Jingya1,2(), Huang Rihong1,3, Zeng Xiangni1,3, Jiang Li1,3, He Fei1()   

  1. 1.Dept. of Stomatology, Shenzhen People’s Hospital (The Second Clinical College of Jinan University, The First Affiliated Hospital of Southern University of Science and Technology), Shenzhen 518020, China
    2.Dept. of Stomatology, The Third People's Hospital of Shenzhen (The Second Affiliated Hospital of Southern University of Science and Technology), Shenzhen 518112, China
    3.Dept. of Stomatology, School of Stomatology, Jinan University, Guangzhou 510632, China
  • Received:2024-08-07 Revised:2024-12-02 Online:2025-04-01 Published:2025-03-25
  • Contact: He Fei E-mail:jingya1205@163.com;hefeixqkq@aliyun.com
  • Supported by:
    Shenzhen Science and Technology Foundation(JCYJ20210324114005016)

摘要:

目的 比较3种生物陶瓷类根管封闭剂C-Root SP(C-R)、iRoot SP及GuttaFlow Bioseal(GFB)的体外根尖封闭性。 方法 将82颗单根单管前磨牙及前牙使用M3机用镍钛锉预备后,随机分为6个实验组(n=12)和2个对照组(n=5)。分别行单尖法充填和超声活化单尖法充填,即C-R+单尖法(A1组)、C-R+超声活化单尖法(A2组)、iRoot SP+单尖法(B1组)、iRoot SP+超声活化单尖法(B2组)、GFB+单尖法(C1组)、GFB+超声活化单尖法(C2组)、阳性对照组(D组)和阴性对照组(E组)。采用染料渗透法检测各组根尖染料渗入长度及侧支根管充填情况,扫描电镜(SEM)观察各组牙胶-根管封闭剂-牙本质壁的结合界面。染料渗入长度及侧支根管数目进行Kruskal-Wallis检验,侧支根管充填率进行卡方检验。 结果 A1组染料渗入长度小于C1组及A2组(P<0.05),其余各组间染料渗入长度差异无统计学意义(P>0.05);各组间侧支根管充填情况差异无统计学意义(P>0.05);SEM观察,与A1、A2、B1、B2组相比,C1、C2组根管封闭剂-根管壁-牙胶界面更紧密,充填物渗入牙本质小管的数目更多,渗入牙本质小管的长度更长。 结论 GFB、C-R与iRoot SP均有良好的根尖封闭性。本研究条件下,超声活化单尖法不会显著提高3种根管封闭剂的根尖封闭性。

关键词: 根管治疗, 根管封闭剂, 根尖封闭性

Abstract:

Objective We aimed to compare the apical sealing properties of three endodontic sealers, namely, C-Root SP (C-R), iRoot SP, and GuttaFlow Bioseal (GFB) in vitro. Methods Eighty-two single-rooted premolars and anterior teeth were prepared by using M3 machine with nickel-titanium file and randomly divided into six experimental groups (n=12) and two control groups (n=5). Group A1: single-cone technique (SC)+C-R; group B1: SC+iRoot SP; group C1: SC+GFB; group A2: single-cone with ultrasonic activation (SU)+C-R; group B2: SU+iRoot SP; group C2: SU +GFB; group D: positive control group, and group E: negative control group. Dye penetration length and lateral root canal filling in each group were measured by dye penetration test. A scanning electron microscope (SEM) was used to observe the interface between gutta pertscha, root canal sealer, and dentin wall. Dye penetration length was measured and analyzed by Kruskal-Wallis test, and data on lateral root canal filling were evaluated using Chi-square. Results The dye penetration length in group A1 was lower than that in groups C1 and A2 (P<0.05) but was not significantly different from the other groups (P>0.05). Lateral root canal filling was not significantly different among all groups (P>0.05). SEM showed that GFB was slightly better than C-R and iRoot SP in binding to gutta pertcha and dentin wall. Conclusion GFB, C-R, and iRoot SP demonstrate excellent apical sealing ability. Under the conditions tested in this study, SU did not yield significantly improve the apical sealing ability of the three root canal sealers.

Key words: root canal therapy, root canal sealer, apical sealing ability

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