• Contessa Zirconia crowns or bridges can be cemented with any conventional PFM cement (Glass Ionomer, Zinc Phosphate) or Composite Resin Cement (Panavia 21 or Unicem).
  NOTE: Cements with higher expansion rates (e.g., hybrid ionomer cements) must NOT be used.
• Clean tooth surfaces. Tooth surface should not be dehydrated when cement is applied. Excessive drying concentrates protein debris and prevents efficient wetting of tooth surface.
• Never use varnishes to protect tooth if polyacrylic acid cements are used (prevents chemical bonding to tooth structure).
• Margins of cement should be protected with varnish after initial set (5 to 6 minutes). Under no circumstances should saliva come into direct contact with unset cement.

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