不同材料桩核对IPS-Empress 2全瓷冠颜色的影响  

Influence of different types of posts and cores on color of IPS-Empress 2 crown

作　　者：李东方[1] 杨静远[1] 杨醒眉[1] 杨柳[1] 徐强[1] 管红雨[1] 万乾炳[2] 

机构地区：[1]口腔生物医学工程教育部重点实验室四川大学 [2]四川大学华西口腔医院修复科,四川成都610041

出　　处：《华西口腔医学杂志》2007年第5期450-453,共4页West China Journal of Stomatology

基　　金：国家教委回国留学人员科研启动基金资助项目[教外司留(2002)247]

摘　　要：目的研究不同材料桩核对IPS-Empress2全瓷冠不同部位颜色的影响规律。方法制作全瓷桩核、氧化锆桩树脂核、金合金桩核、镀金镍铬合金桩核和镍铬合金桩核各3个,用PR-650光谱扫描色度仪测量不同桩核背景下IPS-Empress2全瓷冠唇面切1/3、中1/3和颈1/3的L*、a*、b*颜色参数,研究不同材料桩核对全瓷冠颜色的影响。结果全瓷桩核和镀金镍铬合金桩核背景的L*、a*、b*值均高于其他桩核背景,氧化锆桩树脂核背景的L*、a*值较高,b*值较低,金合金桩核背景的L*、a*、b*值较低,镍铬合金背景的L*、a*、b*值最低。结论应用IPS-Em-press2全瓷冠修复根管治疗后的上前牙时,推荐使用全瓷桩核和氧化锆桩树脂核,也可以考虑使用镀金镍铬合金桩核或金合金桩核,不推荐使用镍铬合金桩核。Objective To evaluate the influence of different types of posts and cores on the final color of the IPS-Emperss 2 crown. Methods Five types of posts and cores（Cerapost with Empress cosmo, Cerapost with composite resin, gilded Ni-Cr alloy, gold alloy and Ni-Cr alloy） were made. The shifts in color of three points of IPS-Empress 2 crown surface （cervical, middle and incisal） with different posts and cores was measured with a spectroradiometer （PR-650）. Results The L＊ a＊ b＊ values of zirconium oxide and gilded Ni-Cr alloy posts and cores with ceramic crown were the highest. The L＊ a＊ values of zirconium oxide posts composite cores were higher while the b＊ values were lower. The L＊ a＊ b＊ values of Ni-Cr alloy were lower than that of gold alloy and were the lowest. Conclusion In combination with IPS-Empress 2 crown, zirconium oxide posts are suitable for routine use in the anterior dentition, and gilded Ni-Cr alloy and gold alloy posts and cores can be recommended for clinical practice. Ni-Cr alloy posts and cores can not be recommended for clinical practice.

关 键 词：氧化锆 桩核 颜色 

分 类 号：R783.3[医药卫生—口腔医学]