三种非贵金属烤瓷冠对龈沟液内毒素的影响

发布时间：2019-04-13 10:13

【摘要】：目的：运用酶联免疫吸附法检测镍铬合金、钴铬合金和钛合金烤瓷冠修复前、戴临时冠一周、一个月、三个月、六个月时龈沟液内毒素含量,评价三种非贵金属烤瓷冠对牙周组织的影响。方法：选择镍铬合金、钴铬合金和钛合金烤瓷冠修复牙体的患者各30例,于修复前、修复后一周、修复后三个月、修复后六个月时分别提取其龈沟液,检测其中内毒素的含量变化。结果：1.镍铬烤瓷牙组戴临时牙一周时内毒素量有所增高；戴烤瓷牙一个月、三个月、六个月时龈沟液内毒素量有所下降并趋于稳定,但高于牙体预备前水平,且戴牙后各时间段内毒素含量均高于其余两组。2.钴铬烤瓷组戴临时牙一周时内毒素量有所增高：戴烤瓷牙一个月时龈沟液内毒素量有所下降,三个月至六个月时趋于稳定,与牙体预备前无明显差异。3.钛合金烤瓷牙组戴临时牙一周时内毒素量有所增高；戴烤瓷牙一个月、三个月、六个月时内毒素含量相对稳定,与牙体预备前无明显差异。结论：1.镍铬合金烤瓷冠对龈沟液内毒素的量有一定的影响,但未导致明显的临床症状,其是否会造成牙周组织的损伤有待进一步研究。2.钴铬烤瓷冠对龈沟内毒素含量有较小的影响,修复六个月时与修复前无显著性差异,提示该材料对牙周组织的损伤较小。3.钛合金烤瓷牙对龈沟液内毒素含量有细微影响,修复六个月时与修复前无显著性差异,提示该材料对牙周组织的损伤较小。4.临时冠戴牙一周时,内毒素量均有所增高,提示临时冠的制作材料和方法有待进一步改善。
[Abstract]:Objective: to detect the endotoxin content in gingival crevicular fluid (GCF) at one week, one month, three months and six months before restoration of Ni-Cr alloy, Co-Cr alloy and titanium alloy porcelain crowns by enzyme-linked immunosorbent assay (Elisa). To evaluate the effect of three kinds of non-precious metal porcelain crowns on periodontal tissue. Methods: the gingival sulcus fluid was extracted from 30 patients with Ni-Cr alloy, Co-Cr alloy and Ti alloy porcelain crown respectively before and one week after restoration, three months after restoration and six months after restoration. The changes of endotoxin content were detected. Results: 1. In Ni-Cr ceramic tooth group, the endotoxin content increased after temporary tooth wearing for one week. The content of endotoxin in gingival crevicular fluid decreased and tended to stabilize at one month, three months and six months after wearing porcelain teeth, but higher than that before tooth preparation, and the endotoxin content in each period after wearing tooth was higher than that in the other two groups. In the cobalt-chromium porcelain group, the endotoxin content increased at one week after temporary tooth wearing: the endotoxin content in gingival crevicular fluid decreased at one month after wearing porcelain tooth, and tended to stabilize from three months to six months, and there was no significant difference between the two groups before and after tooth preparation. 3. The content of endotoxin in gingival crevicular fluid decreased after one month of wearing porcelain tooth. The amount of endotoxin in titanium alloy porcelain tooth group increased after one week of temporary tooth wearing, and the endotoxin content was relatively stable in one month, three months and six months after wearing porcelain tooth, and there was no significant difference between the two groups before and after tooth preparation. Conclusion: 1. Ni-Cr alloy porcelain crown has certain effect on the endotoxin content of gingival crevicular fluid, but does not cause obvious clinical symptoms, whether it will cause periodontal tissue damage needs to be further studied. 2. Cobalt-chromium porcelain crown had little effect on the content of endotoxin in gingival sulcus, and there was no significant difference between six months after repair and before repair, suggesting that the material had less damage to periodontal tissue. 3. The content of endotoxin in gingival crevicular fluid was slightly affected by titanium alloy porcelain teeth, and there was no significant difference between the two groups at 6 months after repair, suggesting that the material had less damage to periodontal tissue. 4. The amount of endotoxin increased at one week after temporary crown wearing, suggesting that the material and method of making temporary crown should be further improved.
【学位授予单位】：昆明医科大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：R783

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