华西口腔医学杂志

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排龈药物对体外培养人牙龈成纤维细胞的毒性比较

刘健1 张晓明1 郝鹏杰2 惠敏1 于焕英1   

  1. 1.滨州医学院口腔学院, 山东滨州256603; 2.烟台市口腔医院口腔修复科, 山东烟台264001
  • 收稿日期:2009-04-25 修回日期:2009-04-25 出版日期:2009-04-20 发布日期:2009-04-20
  • 通讯作者: 张晓明,Tel:13954399668
  • 作者简介:刘健(1981-),男,山东人,硕士

Comparison of cytotoxicity between chemical retraction agents on human gingival fibroblasts in vitro

LIU Jian1, ZHANG Xiao-ming1, HAO Peng-jie2, HUI Min1, YU Huan-ying1   

  1. 1. College of Stomatology, Binzhou Medical University, Binzhou 256603, China; 2. Dept. of Prosthodontics, Yantai Stomatological Hospital, Yantai 264001, China
  • Received:2009-04-25 Revised:2009-04-25 Online:2009-04-20 Published:2009-04-20
  • Contact: ZHANG Xiao-ming,Tel:13954399668

摘要:

目的评价6种常用的排龈药物对人牙龈成纤维细胞(HGF)毒性作用的大小,以指导临床选择最佳排龈药物。方法将6种不同体积分数的排龈药物(20%硫酸铝、5%硫酸铝、15.5%硫酸铁、13.3%硫酸铁、0.1%盐酸肾上腺素、0.01%盐酸肾上腺素)分别作用于体外培养的HGF,MTT比色法测定细胞的损伤与增殖,透射电镜观察细胞超微结构的变化。结果所有实验药物均能引起细胞的直接损伤与增殖抑制,细胞毒性由小到大分别是0.01%盐酸肾上腺素、0.1%盐酸肾上腺素、5%硫酸铝、20%硫酸铝、硫酸铁,2种体积分数的硫酸铁毒性比较差异无统计学意义(P>0.01)。透射电镜显示2种体积分数的盐酸肾上腺素及5%硫酸铝可引起细胞器数量减少,线粒体及内质网肿胀;20%硫酸铝造成细胞水肿明显,细胞核和染色质分布不均匀;硫酸铁可导致细胞变性。结论0.01%盐酸肾上腺素细胞毒性作用最小,硫酸铁毒性最大。

关键词: 排龈药物, 细胞毒性, 人牙龈成纤维细胞

Abstract:

Objective To choose the best retraction agent for the clinic by evaluating cytotoxic effects of six chemical retraction agents on human gingival fibroblasts(HGF) in vitro. Methods HGF were treated with six chemical retraction agents which included 20% Al2(SO4) 3, 5% Al2(SO4) 3, 15.5% Fe2(SO4) 3, 13.3% Fe2(SO4) 3, 0.1% HCl - epinephrine and 0.01% HCl-epinephrine. The damage of direct contact and proliferation inhibit were observed by methyl thiazolyl tetrazolium(MTT) colorimetric assay, the ultra structure was observed under transmission electron microscope(TEM). Results All of chemical retraction agents caused cell damage and proliferation inhibit. The ability of cytotoxic effect increased in an order of 0.01% HCl-epinephrine<0.1% HCl-epinephrine<5% Al2 ( SO4)3< 20% Al2 ( SO4) 3

Key words: chemical retraction agent, cytotoxicity, human gingival fibroblasts