Cementation Instructions:

Zeno Tec 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).
Protect margins of cement with varnish after initial set (5 to 6 minutes). Saliva should not come into direct contact with unset cement.