氢氧化钙表面粘接处理对其压缩强度的影响

发布时间：2018-07-25 07:26

【摘要】：目的:比较化学固化氢氧化钙(Dycal)和光固化氢氧化钙(Calcimol LC)表面粘接处理后对其压缩强度的影响。方法:制备实验试件32个,分4组(n=8):A组为Dycal组;B组为Calcimol LC组;C组为粘接处理的Dycal组;D组为粘接处理的Calcimol LC组。采用德国Zwick电子万能试验机对各个试件进行压缩强度检测。结果:A、B、C、D组的平均压缩强度值分别为(110.48±19.9)、(162.6±7.8)、(136.8±17.2)和(223±31.1)MPa。D组压缩强度值高于其他3组(P0.05),B组的压缩强度值高于A组(P0.05),其他组间无明显统计学差异。结论:光固化氢氧化钙的压缩强度高于化学固化氢氧化钙,光固化氢氧化钙表面粘接处理后,提高了充填体的压缩强度,而化学固化氢氧化钙表面粘接处理对其压缩强度没有影响。
[Abstract]:Aim: to compare the effect of chemically cured calcium hydroxide (Dycal) and photocurable calcium hydroxide (Calcimol LC) on compressive strength. Methods: Thirty-two specimens were prepared and divided into 4 groups (n = 8): group A: Dycal, Group B, Calcimol LC, Group C, Dycal, Group D, Adhesion treated, Group D, Group C, Adhesion treated Calcimol LC. The compression strength of each specimen was tested by Zwick universal testing machine in Germany. Results the average compressive strength of group D was (110.48 卤19.9), (卤7.8), (卤17.2) and (223 卤31.1) MPa.D was higher than that of group A (P0.05). There was no significant difference between other groups. Conclusion: the compressive strength of photocurable calcium hydroxide is higher than that of chemically solidified calcium hydroxide. However, the surface bonding treatment of chemically solidified calcium hydroxide has no effect on the compressive strength of calcium hydroxide.
【作者单位】：哈尔滨医科大学附属第一医院口腔牙体牙髓科;
【基金】：黑龙江省教育厅科学技术研究项目(编号:11551190)
【分类号】：R783.1

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