Screw-retained crowns

Zirconia is indicated for crowns, bridges, implants, inlays and onlays, screw-retained implant crowns and full-arch implant prostheses. It is an esthetic alternative to PFM metal occlusal/lingual or full-cast restorations. The chip-proof durability of a restoration is ideal for bruxers who have broken natural teeth or previous PFM restorations. Zirconia is also ideal when the patient lacks the preparation space for a PFM.

Product Details

Benefits for patients

Chip-resistant, as it is made of solid zirconia with no porcelain overlay
Glazed to a smooth surface to reduce plaque accumulation

Shoulder preparation not needed, feather edge is okay. It is a conservative preparation similar to full-cast gold, so any preparation with at least 0.5 mm of occlusal space is accepted.
Minimum occlusal reduction of 0.5 mm; 1 mm is ideal.
For Esthetic restorations, a minimum occlusal reduction of 0.7 mm; 1.25 mm is ideal.

Prep Requirements

Zirconia is indicated for crowns, bridges, implants, inlays and onlays, screw-retained implant crowns and full-arch implant prostheses. It is an esthetic alternative to PFM metal occlusal/lingual or full-cast restorations. The chip-proof durability of a restoration is ideal for bruxers who have broken natural teeth or previous PFM restorations. Zirconia is also ideal when the patient lacks the preparation space for a PFM.

Indications

Adjust Zirconia crowns and bridges using water and air spray to keep the restoration cool and to avoid micro-fractures with a fine grit diamond. If using air only, use the lightest touch possible when making adjustments. A football shaped bur is the most effective for occlusal and lingual surfaces (on anterior teeth); a tapered bur is the ideal choice for buccal and lingual surfaces.

Polish restorations with the porcelain polishing system of your choice. Or, purchase the Polishing and Adjustment Kit through Glidewell Direct by visiting www.glidewelldirect.com or by calling 888-303-3975.

Instructions for adjusting and polishing

Ceramic Crown & Bridge or a resin-reinforced glass ionomer cement such as RelyX™ Luting Cement (3M ESPE; St. Paul, Minn.) or GC Fuji Plus™ (GC America; Alsip; Ill.)
For short or over-tapered preparations, use a resin cement such as RelyX™ Unicem (3M ESPE) or Panavia™ F2.0 (Kuraray; New York, N.Y.) Polish restorations with the porcelain polishing system of your choice.

Implants