CAJ | 학술논문

【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24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：52 μm、42 μm、30 μm，边缘浮升量分别为：63 μm、59 μm、42 μm。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<0.01）。【结论】用代型隙料法和带模铸造法制作的Plat-Ⅱ型铸造陶瓷全冠能显著提高边缘适合性。
【목적】탐토개선Plat-Ⅱ형주조도자전관괄합성적방법。【방법】분별용상규탈모주조법、대형극료법、대모주조법제작Plat-Ⅱ형주조도자전관24개，용린산자점고분점고우각자적대형상，측시각조관，각개부위적점고제후도，비교기괄합성。【결과】 3충방법제작적전관기점고제평균후도분별위：52 μm、42 μm、30 μm，변연부승량분별위：63 μm、59 μm、42 μm。3충방법제작적전관변연부승량、축벽、아합면점고제후도균유현저성차이（P<0.01）。【결론】용대형극료법화대모주조법제작적Plat-Ⅱ형주조도자전관능현저제고변연괄합성。
【Objective】To improve the adaptation of Plat-Ⅱceramic crown.【Method】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.【Result】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.