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首页> 外文期刊>The Journal of Prosthetic Dentistry >A method for fabricating a cast post and core that is esthetic when used under an all-ceramic crown.
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A method for fabricating a cast post and core that is esthetic when used under an all-ceramic crown.

机译：一种用于在全瓷冠下使用时具有美学效果的铸件和型芯的制造方法。

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摘要

This article presents a technique to enhance the optic qualities of all-ceramic crowns when placed over a cast post and core. An opaque layer is necessary over a metal structure, such as a cast core, to reduce light absorption and increase the reflectance of the metal. The desired effect is to raise the value of the core in order to approach the optic qualities of dentin. However, the problem of reflectance is fully eliminated by the use of an opaque layer of ceramic. The translucence of a ceramic crown may not be limited by the use of opaque material under the crown. This procedure requires the placement of an opaque layer of ceramic on the core, thereby moving such a layer 0.3 to 0.5 mm more deeply from the surface of the restoration. This allows more depth and translucence to the crown, as light penetrates further into the crown.
机译：本文介绍了一种技术，当将其放置在铸柱和型芯上时，可以增强全瓷冠的光学质量。为了减少光吸收并增加金属的反射率，在铸件之类的金属结构上必须有一个不透明的层。所需的效果是提高芯的价值，以接近牙本质的光学品质。但是，通过使用不透明的陶瓷层可以完全消除反射问题。陶瓷冠的半透明性可能不受冠下面使用不透明材料的限制。该步骤需要在芯体上放置一层不透明的陶瓷层，从而使该层距离修复体的表面深0.3至0.5毫米。随着光线进一步穿透冠部，这将使冠部具有更大的深度和透明度。

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