撰写结构式摘要须知.pdf
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王颖卉等：反复熔铸对镍铬烤瓷合金硬度的影响 2O1 [11] [12] [13] 铸件力学性能测试研究[J]．现代口腔医学杂志，2003，17 (2)：150—151． Peraire M，Martinez-Gomis J，Anglada J M， a1．Effects of recasting on the chemical composition，microstrueture，mi— crohardness，and ion release of 3 dental casting alloys and ti— tanium[J]．Int J Prosthodont，2007，2O(3)：286—288． Hesby D A，Kobes P，Garver D，eta1．Physical properties of a repeatedly used nonprecious metal alloy[J]．J Prothet Dent， 1980，44(3)：291_293． 潘 鑫，张晓东，李玉洋．修复体高熔合金材料钴铬合金铸造 后性能研究[J]．黑龙江医药科学，2001，24(3)：13—15． [14]Horasawa N，Marek M．The effect of recasting on corrosion of a silver—palladium alloy[J]．DentMater，2004，20(4)：352— 357， [15]Bauer JR，LoguercioAD，ReisA，eta1．Microhardness ofNi- Cr alloys under different casting conditions[J]．Braz Oral Res，2006，2O(1)：40-46． [163朱松，于德珍，赵华，等．不同环境对多次铸造钴铬合金 机械性能的影响[J]．现代1：7腔医学杂志，1998，12(1)： 27—29． Effect of Recasting on the Hardness of the Nickel—chromium Ceramic Alloy WANG Yinghui ，LIAN Songfeng。
CHENG Hui ，LI QiangMA Shouzhi ，LI Xiurong 1．Department of Prosthodontics，The Affiliated Stamatology Hospital，Fujian Medical University，Fuzhou 350002，China； 2．Department of Stamatology，Xiamen Chang Gung Hospital，Xiamen 362000China； 3．College of Material，Fuzhou University，Fuzhou 350108，China； 4，Department of Dental Technology，The Affi liated Stamatology Hospital，Fujian Medical University，Fuzhou 350002，China ABSTRACT： Objective To study the effect of recasting on the hardness of the nickel—chromium ca— ramic alloy． Methods The recast nickel-chromium ceramic alloys were respectively obtained by recasting the nickel—chromium alloy in pressure casting condition for once，twice，3 times and 4 times．The recast alloys were respectively cast with uncast alloys(new alloys)to produce specimens for hardness testing． The hardness specimens were measured for Vickers hardness in a microhardness tester after initial ground— ing，resin inlay，and metallographic polishing． Results On the basis of their Vickers hardness，there was no significant difference between the alloys recast for 2～5 times and those cast for once(P>0．05)． Conclusion The nickel—chromium ceramic alloy can be recast for at least 5 times without impairing its hardness． KEY WORDS： chromium alloys，nickel；metal ceramic alloys；dental casting technique；hardness (编辑：张慧茹) 撰写结构式摘要须知 1．目的(Objective)：简要说明研究的目的，说明提出问题的缘由，表明研究的范围和重要性。
2．方法(Metho )：简要说明研究课题的基本设计，使用了什么材料和方法，如何分组对照，研究范围及 精确程度，数据是如何取得的，经何种统计学方法处理 3．结果(Results)：简要列出研究的主要结果和数据，有什么新发现，说明其价值及局限叙述要具体、 准确需给出结果的置信值、统计学显著性检验的确切值 4．结论(Conclusion)：简要说明经过验证、论证取得的正确观点，其理论价值或应用价值，是否可推荐或 推广等。
