Which material to use ??
62 year old patient wants better esthetics for his lower anterior teeth.
He has a fixed all Zirconia bridge on implants on top and his lower teeth exhibit both attrition and erosion.Patient admits to sucking on lemons on a daily basis !
After consulting Dr. Google he asks me if the crowns I proposed to him would be Zirconia, porcelain fused to Zirconia, or Lithium Disilicate...!!
My answer: Full Zirconia crowns would match better upper bridge in opacity but could uncement frequently.
Porcelain fused to zirconia has superb esthetics but tends to chip.
Our best bet would be Lithium Disilicate in this case for better bonding and hence retention, even if they would be less opaque than the upper bridge.
07 Emax crowns were made, bonded, and adjusted in centric, protrusion, and lateral movement.
Esthetics are superb even if a bit more translucent than the upper bridge..