华西口腔医学杂志2011，Vol.29Issue(4)：358-360,364,4.DOI:10.3969/j.issn.1000-1182.2011.04.006
SiO2薄膜对镍铬合金烤瓷冠色彩再现的影响
Influence of SiO2 films on color reproduction of Ni-Cr alloy porcelain crowns
摘要
Abstract
Objective To study whether SiO2 films will influence the color of Ni-Cr metal ceramic restorations.Methods For the film plating experimental group, Sol-gel method was employed to apply SiO2 films to the surface of the Ni-Cr copings, while no coating was applied for the non-film-plating control group. Veneering porcelains were then applied subsequently, and a total of 12 B2-colorod maxillary incisor metal ceramic crowns were fabricated with 6 crowns in each group. A ShadeEye Ncc computer-aided colorimeter was employed to measure the shade of the samples, as well as 6 B2(Vitapan classical vita color tabs) shade standards. The color was expressed as CIE-1976-Lab coordinates. Results There was a statistically significant color difference between all metal ceramic crowns and the B2 shade standards(ΔE＞l.5). The L*, a*, b* values of all crowns were higher than those of the B2 shade standards, and the crowns were typically yellower or redder. While neither significant color difference nor difference in shade values was observed between the film plating experimental group and non-film-plating control group (ΔE＜1.5). Conclusion SiO2 films applied to the Ni-Cr copings by means of Sol-gel technique do not impact the final color of the metal ceramic restorations.关键词
SiO2薄膜/溶胶-凝胶/镍铬合金/烤瓷冠/颜色Key words
SiO2 film/ Sol-gel/ nickel-chromium alloy/ porcelain crown/ color分类
医药卫生引用本文复制引用
伍栋,冯云枝..SiO2薄膜对镍铬合金烤瓷冠色彩再现的影响[J].华西口腔医学杂志,2011,29(4):358-360,364,4.基金项目
中央高校基本科研业务费中南大学重点基金资助项目(2010DXPY01) （2010DXPY01）
湖南省卫生厅科技计划基金资助项目(B2008-008) （B2008-008）
