How should I prepare teeth for EZneer zirconia veneers?

Preparation design has a direct effect on fit, bond durability, and fracture resistance. Follow the ROE specifications below.

Prep area	ROE specification
Facial reduction	0.3 to 0.5 mm
Margin	0.2 mm chamfer margin, placed at or slightly subgingival
Incisal edge	0.75 to 1.5 mm of reduction, 90-degree butt joint preferred
Interproximal	Extend the prep into the interproximal, halfway through the contacts

Keep facial reduction uniform. Uneven reduction on an ultra-thin veneer creates thin spots that compromise strength and thick spots that alter shade.
A defined chamfer beats a feather edge. A 0.2 mm chamfer gives the technician a readable margin and gives you a definite seating stop.
Placing the margin at or slightly subgingival helps hide the transition, which matters most when masking discoloration.
Favor the butt joint incisally. A 90-degree butt joint distributes load better than a thin, unsupported lip of material.
Extending halfway through the contacts keeps the interproximal transition out of direct view and gives the technician room to build proper contour and contacts.
Do not leave the margin on unsupported composite or existing restorations where it can be avoided. Bond quality depends on the substrate you leave behind.

If you would like a preparation reviewed before you send the case, Chairside Support is available.

Additional Resources

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Contact Information

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