The influence of colored zirconia on the optical properties of all-ceramic restorations
The influence of colored zirconia on the optical properties of all-ceramic restorations
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DOI：
10.4012/dmj.2015-171
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发表时间：
2015-12-01
影响因子：
2.5
通讯作者：
Kawada, Eiji
中科院分区：
文献类型：
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作者：
Harada, Rino;Takemoto, Shinji;Kawada, Eiji
研究了不同颜色的四氧化锆多晶（TZP）核对TZP骨架结构复合物光学性质的影响。将直径为14 mm、厚度为0.5 mm的三种不同颜色的TZP盘（Katana Zirconia）与2种色调的饰面陶瓷（色调A1和A4：Cerabian ZR）分层。将这些样品抛光至约1.5 mm。评价TZP澄清度上的CIE L*a*B* 坐标、透明度（TP）和乳光（OP）。因此，TZP核心颜色影响TZP光谱的CIE L*a*B* 值，但TP和OP在3种核心颜色之间没有显着差异。当贴面陶瓷层压至1.0 +/- 0.1 mm的厚度时，着色TZP框架结构的半透明性和乳光不受下面的TZP核心颜色的影响。
This study investigated the effects of different colored tetragonal zirconia polycrystal (TZP) core on the optical properties of TZP framework restorations. Three various colors of TZP discs (Katana Zirconia) 14 mm in diameter and 0.5 mm thickness were layered with 2 shades of veneering ceramics (shade A1 and A4: Cerabian ZR). These specimens were polished to approximately 1.5 mm. CIE L*a*b* coordinates, translucency (TP), and opalescence (OP) on the TZP restorations were evaluated. Consequently, TZP core color affected CIE L*a*b* values of TZP restorations however TP and OP did not significantly differ among the 3 core colors. Translucency and opalescence for colored TZP framework restorations were not influenced by the underlying TZP core color when veneering ceramics were layered to thicknesses of 1.0 +/- 0.1 mm.