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I agree with your point about regularly noticing metal crowns but note that dental ceramics are way harder than metal. Dental ceramic is a 7 on the Mohs scale w

I agree with your point about regularly noticing metal crowns but note that dental ceramics are way harder than metal. Dental ceramic is a 7 on the Mohs scale while gold and silver are in the 2.5 to 3 range.

loco5niner 7y ago
Interesting. And tooth enamel apparently ranks a 5.
- iends 7y ago
  It’s not just about hardness. It’s about biocompatibility.