中国组织工程研究

中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (12): 2179-2182.doi: 10.3969/j.issn.1673-8225.2010.12.022

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

两种根管充填材料的封闭性能比较

王  萍，梁焕友，吴  坚，唐  倩   

  1. 中山大学附属第三医院口腔科，广东省广州市  510630
  • 出版日期:2010-03-19 发布日期:2010-03-19
  • 通讯作者: 梁焕友，主任医师，硕士生导师，中山大学附属第三医院口腔科，广东省广州市 510630
  • 作者简介:王 萍★，女，1975年生，山东省阳谷县人，汉族，2002年中山大学毕业，硕士，主治医师，主要从事口腔内科学方面的研究。 wangpww@126.com

Sealing property comparison of two kinds of root canal filling materials

Wang Ping, Liang Huan-you, Wu Jian, Tang Qian   

  1. Department of Stomatology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou  510630, Guangdong Province, China
  • Online:2010-03-19 Published:2010-03-19
  • Contact: Liang Huan-you, Chief physician, Master’s supervisor, Department of Stomatology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, Guangdong Province, China
  • About author:Wang Ping★, Master, Attending physician, Department of Stomatology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, Guangdong Province, China wangpww@126.com

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摘要：

背景：封闭能力是一个理想根管封闭剂应具备的至关重要的性能，因此在评价根管充填材料时，应首先考虑根管封闭性。
目的：比较临床常规使用的标准牙胶尖和Thermafil热牙胶两种根管充填材料的根管封闭性能。
方法：分别采用标准牙胶尖与氧化锌丁香油糊剂侧方加压充填根管和Termafil热牙胶充填根管，利用染料渗漏法及扫描电镜观察两种根管充填材料对根尖孔的封闭能力及其与根管壁之间的密合度。
结果与结论：标准牙胶尖+氧化锌丁香油糊剂组和Thermafil组染料渗透的长度分别为(4.70±1.46) mm和(1.46±0.55) mm； 标准牙胶尖+氧化锌丁香油糊剂组和Thermafil组材料与根管壁的微缝隙宽度分别为(7.84±5.32) μm和(2.40±1.88) μm，统计结果显示两组间差异有显著性意义(P < 0.01)。提示Termafil热牙胶充填根管较标准牙胶尖加氧化锌丁香油糊剂侧方加压充填根管的密合度和封闭性好。

关键词: Thermafil热牙胶, 染料微渗漏, 扫描电镜, 封闭性能, 根管充填材料

Abstract:

BACKGROUND: Sealing capability is one of the most important performances of an ideal root canal filling material, which should be paramount consideration. 
OBJECTIVE: To compare the sealing capability between the standard gutta-percha point and Thermafil warm gutta-percha. 
METHODS: The extracted single root teeth were filled with standard gutta-percha point in the lateral condensation technique and Thermafil, respectively. The apical sealing capability was estimated by dye penetration method. The microchink between filling materials and the wall of root canals was measured with scanning electron microscope.
RESULTS AND CONCLUSION: The dye penetration lengths of gutta-percha point + Zinc oxide eugenol paste group and Thermafil group were (4.70±1.46) mm and (1.46±0.55) mm, respectively. The microchinks between materials and walls of gutta-percha point + Zinc oxide eugenol paste group and Thermafil group were (7.84±5.32) μm and (2.40±1.88) μm, respectively. There was statistically significant difference between the gutta-percha point + Zinc oxide eugenol paste group and Thermafil group (P < 0.01). It suggested that Thermafil has more advantage in microchinks and sealing capability than traditional standard gutta-percha point by the lateral condensation technique.

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