Yes but if youve looked at Sintx research you'll see that tissue response is superior when you add small amounts of Si3N4 to the Bioglass. This increases cellular activity and provides antimicrobial proproties superior to copper. Plus, while copper is an element needed, too much of it is a bad thing.
Heres a funny thing. When I lived in Salt Lake I developed a copper allergy because south of my house was a copper mine which likely resulted in copper getting into the air or water.
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