Color differences have been found between the shade guide and metal ceramic restorations in clinical work.

但临床上金瓷修复体与比色板所选颜色之间的色差问题长期存在。

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Objective to compare the color character of VITA shade guide and the custom shade guide with metal substrate.

目的比较VITA比色板和带金属底冠定制比色板的颜色特性。

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Results: There was significant colour difference between the attached shade guide and the resin materials, and the difference were greater than the value recognized by naked eyes.

结果：附属比色板与相应的材料间存在明显的色度差异，远远超过肉眼的识别阈。

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