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Question Asked on 6/20/2018
 

Why are the margins of my all ceramic restorations turning dark or black sometime after cementation?

Answer Response by Dr. Suh on 6/20/2018
 
You are probably using an iron-based chemical astringent for soft tissue management. Switch to an aluminum-based astringent and make sure there is no contamination of the site with blood prior to cementation.

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