摘要
【目的】探讨改善Plat Ⅱ型铸造陶瓷全冠适合性的方法。【方法】分别用常规脱模铸造法、代型隙料法、带模铸造法制作Plat Ⅱ型铸造陶瓷全冠 2 4个 ,用磷酸锌粘固粉粘固于各自的代型上 ,测试各组冠 ,各个部位的粘固剂厚度 ,比较其适合性。【结果】 3种方法制作的全冠其粘固剂平均厚度分别为 :5 2 μm、42 μm、30 μm ,边缘浮升量分别为 :6 3μm、5 9μm、42μm。 3种方法制作的全冠边缘浮升量、轴壁、牙合面粘固剂厚度均有显著性差异 (P <0 0 1)。【结论】用代型隙料法和带模铸造法制作的Plat
To improve the adaptation of Plat Ⅱceramic crown. The Plat Ⅱcastable ceramic crowns were made by three methods, namely routine method, die spacer technique, and the model investing method. 24 crowns were made by these three methods individually and adhered to the corresponding model die with zinc phosphate to measure the adhesive thickness and compare their adaptation. The average adhesive thickness at different parts of crown of these three groups were 52 μm?42 μm?30 μm and the margins discrepence were 63 μm?59 μm?42 μm, respectively. There is statistically difference in both the adhesive thickness and the margin discrepence with these three methods (P<0.01).[Conclusion] The crowns made from the die spacer technique and the model investing method could improve the adaptation significantly.
出处
《中山医科大学学报》
CSCD
北大核心
2001年第3期222-224,共3页
Academic Journal of Sun Yat-sen University of Medical Sciences
