BruxZir® Solid Zirconia
BruxZir® Solid Zirconia is a high-strength, esthetic alternative to PFM metal occlusal/lingual or full cast restorations. It is ideal for restorations requiring extra durability such as crowns under partials or screw-retained implant crowns. BruxZir® exhibits an average flexural strength of 1,200 MPa and is chip-proof. Due to its extreme durability, BruxZir® restorations are ideal for bruxers who have broken natural teeth or previous PFZ/PFM restorations. BruxZir® restorations are also ideal for patients lacking the preparation space for a PFZ/PFM and come with a 5-year replacement-free warranty.
Send a Case Download RxIndications
BruxZir® zirconia is so versatile, it can be used in almost any situation from singles, bridges with any combination of abutments and pontics, inlay bridges, Maryland type bridges and screw retained implants. Also an esthetic alternative to a PFM with metal occlusion due to limited space.
Contraindications
When esthetic expectations are high and it is important that the restorations match surrounding natural dentition or other existing restorations.
If bonding is necessary to retain the restoration, bond strength is weaker and less predictable than other ceramics
Preparation
Shoulder preparation not needed. A mild chamfer or a feather-edge margin is good. 1mm buccal, lingual, and occlusal reduction is ideal, but can go to .5mm in some areas when reduction is limited. Minimum occlusal reduction of 0.5 mm; 1 mm is ideal. Adjustments and polishing: Adjust full-contour zirconia crowns and bridges using water and air spray to keep the restoration cool and to avoid microfractures 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 full-contour zirconia restorations with the porcelain polishing system of your choice.
Cementation
BruxZir® zirconia may be cemented using a resin reinforced glass ionomer such as RelyX™ Luting cement. When a greater bond is needed do to the lack of a retentive preparation, use resin cement like RelyX™ Unicam or RelyX™ Ultimate. Before cementing all BruxZir® zirconia crowns, the interior surface of the crown needs to be cleaned with Ivoclean (Ivoclar Vivadent; Amherst N.Y.). This is critical in assuring maximum bond strength.
Tech Notes
Solid zirconia requires a cast gold type preparation. If adjustments are needed, use zirconia specific diamonds and rubber wheels polishing with diamond paste.
Codes
- D2740 Crown – Porcelain/Ceramic Substrate
- D6245 Pontic Porcelain/Ceramic
- D6740 Abutment Crown Porcelain/Ceramic
