Alpen Z-REX Zirconia Diamond Burs

Alpen Z-Rex - Zirconia diamonds

Perfect Diamond instruments for zirconia and other high-performance ceramics

Uncover an outstanding combination of durability and effectiveness, minimizing the quantity of burs required for cutting zirconia.

Protect your restoration from microcracks during crown adjustments.

Shorten procedure time.

Enjoy the convenience of easily opening blister packaging.

Key to Long-Term Success - Diamond Instrument Selection for Zirconia

Zirconia and high-resistant ceramics are gaining popularity in the US market for dental restorations. Studies show complication rates of 5% to 16% after 5 years of use. Main issues include chipping and fractures due to microcracks in zirconia. Choosing the right instruments for adjustment is crucial for ensuring longevity and clinical success.

What Burs Are Recommended for Adjusting Zirconia?

Studies have shown that using coarse diamond burs and carbides can weaken zirconia causing surface microcracks and reducing its flexural strength. This can lead to fractures during loading. Moreover, these instruments leave rough surfaces that are difficult to polish effectively increasing abrasion on opposing teeth and bacterial retention. SEM pictures highlight that not all diamond burs for zirconia are suitable for zirconia adjusting, emphasizing the importance of choosing the right tools for optimal results.

Alpen Z-Rex Blue Grit (M, 64 - 126 μm)

• less aggressive
• smoother surface
• no microcracks

Z-Rex Application

Intraoral and Extraoral Adjustment

• Smoothing (Models: 379Z, 862Z, 863Z, RP230379RA, RP230381RA, 60022205)
• High Luster Polishing (Models: RP230391RA, RP230393RA, 60022206)

Endo Access

• 801Z-012
• 801Z-014
• 801Z-018

Crown Cutting

• 850Z-016
• 850Z-018
• 856Z-018
• 881Z-014
• 881Z-016C

Why Is Zirconia Polishing an Essential Step?

• enhances zirconia's flexural strength → increases restoration longevity
• reduces surface roughness → improves aesthetics and gloss
• decreases biofilm accumulation → decrease secondary caries
• minimizes wear on opposing teeth
• creates a delightful, smooth sensation for patients
• the polished surface does not crack like glaze
• many studies revealed glazed monolithic crowns cause more wear than polished ones

What Makes Z-Rex Burs Exceptionally Unique?

Enhanced Resilient Alloy Bonding

Enhanced Resilient Alloy (ERA20) Bonding Offers Exceptional Properties

• ERA matrix enables better embedding of diamonds
• Hardness increases by 70% compared to conventional bonding
• Significantly increased toughness

These Features Contribute to Reduced Delamination of Diamonds, Resulting In:

• Higher durability
• Improved efficiency

Unique Synthetic Diamond Mixture

Z-Rex burs feature two different synthetic grits, monocrystalline with regular shapes for increased durability, and polycrystalline with irregular, self-sharpening shapes to enhance grinding efficiency.

Monocrystalline - Increased Service Life Polycrystalline - Increased Efficiency

Proven properties

Time to cut a 1 mm deep groove in a zirconia block: The zircon burs Z-Rex with improved bonding achieved the best results.

Grinding Efficiency

Z-Rex outperforms competitor products by grinding more zirconia per second.