All-Ceramic Crowns Have a More Life-Like Appearance Than Porcelain-Bonded-To-Metal Crowns

question 23

Multiple Choice

All-ceramic crowns have a more life-like appearance than porcelain-bonded-to-metal crowns because they:

• A) have an opaque layer
• B) do not have an opaque layer to hide metal
• C) are cemented with different cements than porcelain-bonded-to-metal crowns
• D) utilize high-fusing rather than low-fusing porcelain

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