Procera crowns have no metal substructure and are more lifelike than pre-existinging PFM’s. The strength of the zirconium oxide coping allows Procera crowns to be used with any conventional crown and bridge cement. Zirconia has a flexural strength and fracture toughness almost twice as high as that of alumina, which makes zirconia very resistant to masticatory forces, while maintaining an exact precision fit 

• Thinner coping enables more flexible esthetic opportunities.
  
• Combines zirconia extreme flexural strength, 1200 MPa, with a    beautiful esthetic result.
• New unique coloring technique (no dipping involved) for optimal homogeneity – no color variations.
•  Excellent bond strength between framework and veneering material.
•  Conventional cementation or bonding techniques.
•  No graying from metal oxides, no metal margins to hide.
•  Computer aided design.