吳 江,姚月玲,伊元夫,王少海,逯 宜
　　　�。ǖ谒能娽t(yī)大學口腔醫(yī)學院修復科 陜西省西安市 710032）

　　[摘要］目的：研究Vidadur Alpha 飾瓷中不透明牙本質(zhì)瓷的厚度對In-Ceram滲透鋁瓷復合顏色的影響。新泰科儀器INTEKE.CN方法：分別制作四種顏色滲透鋁瓷基底AL1、AL2、AL3、AL4，厚度為0.5mm。在滲透鋁瓷基底表面分別構筑與其相對應的A1、A3、B4、C4的不透明牙本質(zhì)瓷，厚度分別為0.1mm、0.2mm、0.3mm、0.4mm、0.5mm五種。用MINOLTA CR-321型測色儀在標準白背景下測色，記錄數(shù)值，進行比較、分析。結果：①復合顏色隨不透明牙本質(zhì)瓷厚度的增加，四種試件的明度值L呈下降趨勢；②飽和度在一定的厚度范圍內(nèi)無顯著性差異（P>0.05）；③不透明牙本質(zhì)瓷厚度在0.2～0.4mm時，色相角無明顯變化(P>0.05)。結論：不透明牙本質(zhì)瓷厚度變化對調(diào)節(jié)修復體最終的顏色有一定的影響。
　　[關鍵詞]不透明牙本質(zhì)瓷；顏色；滲透鋁瓷　
　　[中圖分類號]R619.6 [文獻標識碼]A [文章編號]1008-6455(2004)01-0009-03

　　A study of color between opaque-dentine porcelain and in-ceram glass/alumina composite
　　WU Jiang, YAO Yue-ling,YI Yuan-Fu,WANG Shao-hai and LU Yi
　　(Department of Prosthodontics,Stomatological college,the Fourth Millitary Medical
　　University, Xi’an Shaanxi 710032,China)

　　Abstract：Objective To investigate the influence of the thickness of opaque-dentine porcelain on the composite color of opaque dentine and infiltrated alumina substrates complex. Methods In-Ceram Glass／alumina composite specimens (AL1, AL2, AL3 and AL4) were prepared with the thickness of 0.5mm, Opaque-Dentine Porcelain (A1, A3, B4 and C4) were applied with the thickness of 0.1mm, 0.2mm, 0.3mm, 0.4mm and 0.5mm respectively. The composite color was measured with MINOLTA CR-321 colorimeter under standard white background, data were recorded and analyzed. Results ①With the Opaque-Dentine porcelain was increased, the L value of each group were decreased. ② Chroma value of each specimen group was remained relatively stable (P>0.05) ③ Within the thickness between 0.2－0.4mm, the Hue value remains relatively stable (P>0.05). Conclusion The thickness of Opaque-Dentine Procelain will probably influence the final color of All-Ceramic Prosthetics.
　　Key words: opaque-dentine porcelain; color; infiltrated alumina