中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (21): 3389-3393.doi: 10.12307/2022.649

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

硅基根管封闭剂GuttaFlow Bioseal充填椭圆形根管的根尖封闭效果

史景华,康文岩,满都拉,梁中华,王晓光,殷  茵,张  蕾   

  1. 呼和浩特市口腔医院,内蒙古自治区呼和浩特市  010030
  • 收稿日期:2021-08-30 接受日期:2021-10-30 出版日期:2022-07-28 发布日期:2022-01-27
  • 通讯作者: 张蕾,主任医师,呼和浩特市口腔医院,内蒙古自治区呼和浩特市 010030
  • 作者简介:史景华,女,1988年生,内蒙古自治区赤峰市人,汉族,硕士,主治医师,主要从事牙体牙髓病研究工作。
  • 基金资助:
    中华口腔医学会西部口腔医学临床科研基金资助项目(CSA-W2019-03),项目负责人:张蕾;呼和浩特市科技计划项目(2019-社-3-1),项目负责人:张蕾

Apical sealing of GuttaFlow Bioseal in oval-root canals

Shi Jinghua, Kang Wenyan, Man Dula, Liang Zhonghua, Wang Xiaoguang, Yin Yin, Zhang Lei   

  1. Hohhot Stomatological Hospital, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • Received:2021-08-30 Accepted:2021-10-30 Online:2022-07-28 Published:2022-01-27
  • Contact: Zhang Lei, Chief physician, Hohhot Stomatological Hospital, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • About author:Shi Jinghua, Master, Attending physician, Hohhot Stomatological Hospital, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • Supported by:
    the Western Stomatology Clinical Research Fund of the Chinese Stomatological Association, No. CSA-W2019-03 (to ZL); Hohhot Science and Technology Plan Project, No. 2019-She-3-1 (to ZL)

摘要:

文题释义:
生物活性封闭剂GuttaFlow Bioseal:也被称为 GuttaFlow 3,是瑞士康特威尔登公司于2015年推出的一种新型硅基封闭剂,由牙胶粉末、聚二甲基硅氧烷、铂催化剂、二氧化锆、硅酸钙和生物活性玻璃陶瓷组成,改善了GuttaFlow、GuttaFlow 2的生物活性,有利于人牙周膜干细胞向成牙骨质细胞分化,促进根尖周组织的再生。它将牙胶粉末(颗粒直径<30 μm)与封闭剂创造性结合,提高了根管充填物的牙胶充填面积百分比,硬固后有2%的体积膨胀。
微渗漏:由于复杂的根管形态、根管壁玷污层、充填技术或充填材料的固缩、溶解等因素可导致充填材料内部、充填材料与根管壁界面出现缝隙,使组织液、微生物及其代谢产物再次进入根管,造成根管系统再感染,影响根管治疗疗效,充填后根尖封闭性是评估根管充填质量的重要指标。

背景:椭圆形根管的严密充填成为困扰临床医生的一大难题,生物活性封闭剂GuttaFlow Bioseal具有良好的理化特性和生物学性能,其充填椭圆形根管的相关研究尚未见报道。
目的:评估生物活性封闭剂GuttaFlow Bioseal充填椭圆形根管的根尖封闭效果。
方法:90颗离体椭圆形单根管下颌前磨牙于牙颈部截冠保留牙根14 mm,采用机用镍钛锉预备根管至F3,随机数字表法分为4组:A组(n=20)以AH-plus+热牙胶技术充填,B组(n=20)以iRoot SP+单尖技术充填,C组(n=20)以GuttaFlow 2+单尖技术充填,D组(n=20)以GuttaFlow Bioseal+单尖技术充填,E组(n=5)为阳性对照组,F组(n=5)为阴性对照组。采用染料渗透法及透明牙技术观察各组根尖微渗漏情况及侧副管充填情况。
结果与结论:①A-D组样本显示出不同程度的染料渗漏,阳性对照组可见染料渗入根管全长,阴性对照组未见染料渗入根管内,B组染料渗入长度大于 A、C、D 组(P < 0.05),A、C、D 组间染料渗入长度比较差异无显著性意义(P > 0.05);②A-D组侧副根管的充填率分别是60%,30%,40%,50%,4组比较差异无显著性意义(P > 0.05);A组超充率显著低于B、C、D组(P < 0.05),B、C、D组超充率比较差异无显著性意义(P > 0.05);③结果表明,GuttaFlow Bioseal封闭剂在椭圆形根管中具有较好的根尖封闭性和侧副管充填效果,充填效率高,但易发生超充。

https://orcid.org/0000-0003-1240-6537 (史景华)

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料口腔生物材料纳米材料缓释材料材料相容性;组织工程

关键词: 根管充填, 根管封闭剂, 根尖封闭性, GuttaFlow Bioseal, 椭圆形根管, 组织工程

Abstract: BACKGROUND: Tight obturation of oval root canals has become a major problem for clinicians. GuttaFlow Bioseal has good physical and chemical characteristics and biological properties, and its obturation of oval root canals has not been reported. 
OBJECTIVE: To evaluate the apical sealing ability of GuttaFlow Bioseal root canal sealer in oval root canals. 
METHODS: Ninety mandibular premolars with single oval-root canal were decoronated to obtain 14 mm root segments. The root canals were instrumented using Protaper files to F3. Roots were randomly divided into four groups. The root canals of group A (n=20) were obturated with AH-plus and the continuous wave of condensation technique. The root canals of group B (n=20) were obturated with iRoot SP and single gutta-percha cone. The root canals of group C (n=20) were obturated with GuttaFlow 2 and single gutta-percha cone. The root canals of group D (n=20) were obturated with GuttaFlow Bioseal and single gutta-percha cone. The group E (n=5) and group F (n=5) were served as the positive and negative control groups, respectively. The apical leakage and the filling of the lateral accessory canals were evaluated by dye penetration method and transparent teeth technique in each group. 
RESULTS AND CONCLUSION: (1) There were significant differences in the length of leakage among groups A-D. The dye penetrated the entire length of the root canal in the positive control group. The dye did not penetrate into the root canal in the negative control group. The dye penetration length of group B was longer than that of groups A, C, and D (P < 0.05). The length of dye penetration among groups A, C, and D was not significantly different (P > 0.05). (2) The filling rate of lateral accessory root canals was not statistically significant among the group A (60%), group B (30%), group C (40%), and group D (50%) (P > 0.05). The overfilling rate in group A was significantly lower than that in groups B, C, and D (P < 0.05). There was no significant difference in the overfilling rate among groups B, C, and D (P > 0.05). (3) These results demonstrate that GuttaFlow Bioseal has good apical sealing ability and lateral accessory canal filling effect on oval root canals, with high filling efficiency, but with the disadvantage of high overfilling rate.

Key words: root canal obturation, root canal filling materials, apical sealing, GuttaFlow Bioseal, oval-root canal, tissue engineering

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