中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (10): 1483-1488.doi: 10.3969/j.issn.2095-4344.2017.10.002

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

不同材料充填根管后即刻与延迟桩道预备对根尖封闭性能的影响

兰玉燕,黄海霞,范丽苑,蒲  琳,刘  敏,孙黎波   

  1. 四川西南医科大学附属口腔医院口腔修复科及口颌面修复重建和再生实验室,四川省泸州市  646000
  • 收稿日期:2016-11-02 出版日期:2017-04-08 发布日期:2017-05-08
  • 通讯作者: 蒲琳,主治医师,四川西南医科大学附属口腔医院口腔修复科及口颌面修复重建和再生实验室,四川省泸州市 646000
  • 作者简介:兰玉燕,女,1986年生,汉族,2009年泸州医学院毕业,硕士,主治医师,主要从事口腔种植修复研究。

Influence of immediate or delayed post space preparation on the apical sealing ability of different root canal sealers

Lan Yu-yan, Huang Hai-xia, Fan Li-yuan, Pu Lin, Liu Min, Sun Li-bo   

  1. Department of Prosthodontics, Laboratory of Orofacial Reconstruction and Regeneration, the Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • Received:2016-11-02 Online:2017-04-08 Published:2017-05-08
  • Contact: Pu Lin, Attending physician, Department of Prosthodontics, Laboratory of Orofacial Reconstruction and Regeneration, the Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
  • About author:Lan Yu-yan, Master, Attending physician, Department of Prosthodontics, Laboratory of Orofacial Reconstruction and Regeneration, the Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China

摘要:

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文题释义:
矿物三氧化物凝聚体
:是一种灰色粉末,包括硅酸钙、磷酸钙、氧化钙及其他成分,含有细腻的亲水性颗粒,在潮湿条件下发生水合作用,形成胶质状凝胶体,凝固后形成坚硬的屏障;固化时间3.0-4.0 h,工作时间 5 min,实验研究表明其具有良好的生物相容性,可有效促进硬组织的再生,并且具有一定的抗菌和抑菌性,有持久良好的根尖封闭效果,应用于根管充填可降低根方微渗漏,有助于提高根管治疗的成功率,是临床上较理想的根管充填材料。
染料渗透法:作为一种可对微渗漏进行定量检测的方法,1939年由Grossman首次应用以来得到了广泛应用,其操作简单,数据读取直观。具体方法:将除根尖孔周围2 mm外的整个牙齿用指甲油或其他封闭剂封闭后,浸入染液中染色,观察染液浸透深度。常用染液有印度墨汁、亚甲蓝、品红等。

背景:根尖封闭性是确保根管治疗远期疗效的关键,由于桩道预备对根管封闭性能带来的影响不可避免,因此如何能将这一影响降至最低成为学者们热议的话题。
目的:探讨使用不同根管充填材料后,即刻桩道预备和延迟桩道预备对根尖封闭性能的影响。
方法:获取48颗人单根管前磨牙,截冠后随机分为3组,每组16颗牙齿:A组于根管充填后进行即刻桩道预备,B组于根管充填后进行延迟桩道预备,C组根管充填后不进行桩道预备,3组内再随机各分为2个亚组,采用不同的根管充填材料,即AH-plus糊剂+牙胶尖组(分别记为A1组、B1组、C1组)与矿物三氧化物凝聚体糊剂+牙胶尖组(分别记为A2组、B2组、C2组)。通过加压染料渗透法测量根管根方微渗漏的长度。
结果与结论:A1组与B1组,A2组与B2组,C1组与C2组根方微渗漏值比较差异无显著性意义(P > 0.05);A1组根方微渗漏值大于A2组(P < 0.05),B1组根方微渗漏值大于B2组(P < 0.05);结果表明,以矿物三氧化物凝聚体糊剂对离体牙进行根管充填后,无论行即刻桩道预备还是延迟桩道预备,根管根方微渗漏均较小,较AH-plus体现出更好的根尖封闭性。

ORCID: 0000-0002-2324-5233(兰玉燕)

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: 生物材料, 口腔生物材料, 矿物三氧化物凝聚体, 根尖封闭性, 即刻桩道预备, 延迟桩道预备, AH-plus

Abstract:

BACKGROUND: Apical sealing ability is the key to ensure the long-term curative effect of root canal therapy. The post space preparation exposes some inevitable influence on root canal sealing ability, so how to minimize this effect becomes a hot spot.
OBJECTIVE: To explore the effects of immediate or delayed post space preparation on the apical sealing ability of different root canal sealers.
METHODS: Forty-eight extracted human premolar teeth were obtained, and the tooth crown was cut off. The samples were randomly divided into three groups (n=16 teeth per group). Group A underwent the immediate post space preparation; group B underwent the delayed post space preparation; group C without the post space preparation. Then all groups were subdivided into two groups, and then were filled with the gutta-percha/AH-Plus obturation material (groups A1, B1 and C 1) or the gutta-percha/mineral trioxide aggregate obturation material (groups A2, B2 and C2). The depth of apical dye penetration was measured using pressure-driven system.
RESULTS AND CONCLUSION: There were no significant differences in the apical microleakage between groups A1 and B1, A2 and B2, C1 and C2 (P > 0.05). The apical microleakage in the group A1 was significantly higher than that in the group A2, and the group B1 also showed higher apical microleakage than the group B2 (P < 0.05). Our findings suggest that either immediate or delayed post space preparation exposes little influence on the apical microleakage after root canal filling with gutta-percha/mineral trioxide aggregate obturation material, which exhibits better apical sealing ability than the AH-plus material.

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

Key words: Root Canal Obturation, Root Canal Filling Materials, Tissue Engineering

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