Posted by Marc Martin on
URL: https://www.es-forum.com/Dental-Implants-tp4032699p4032884.html

Maybe they were replaced by zirconia, I don't know.  It was whatever was stronger material, less likely to fall apart, and not metal.  Also had to wait a couple weeks for them to be made by a lab, while the original crowns were done "while you wait".

Marc