Komet® 4ZRS Jackie™ Zirconia Cutter Diamond Crown Removal Bur

The newest addition to the team of Komet's crown cutters is Jackie™ (4ZRS zirconia cutter diamond bur), which addresses the challenge of removing adhesive-bonded, all-ceramic crowns. Optimized for use on zirconia and other high-strength ceramic materials, the Jackie crown remover (4ZRS.FG.016) is uniquely engineered to slit crowns and bridges to simplify final fracture and removal with a hand instrument. With a length of 4 mm and a tapered working end, the cutter is ideally suited for creating lingual, occlusal, and buccal separating joints, which are essential when working to remove adhesively bonded restorations. Please note, for porcelain-fused-to-metal (PFM) crowns and metal crowns, use Komet's H4MCL or H4MCXL cutters. Other features and benefits of 4ZRS zirconia cutter include:

• Permanently bonded, high-quality diamond particles
• Densely packed diamond layer
• Outstanding durability & extended service life
• Optimal material-reduction capacity
• Extensive range of shapes and sizes to meet all needs

Recommendations for Use:

• Use a generous amount of water and light hand pressure.
• To take full advantage of the instrument's shape and size, apply the instrument at an angle of 45 degrees to the crown.
• Always apply sufficient coolant (at least 50 ml/min).
• Do not exceed a maximum contact pressure of 2N.

Indications for Use

Cutting All-Ceramic Restorations.

Looking for a way to easily switch to Komet burs? Download and then print a Komet Bur Conversion Card here:

4ZRS.FG.016: 5-Pack (Item Number: 190005)

View the complete Komet Ordering Guide - Diamond

View the Komet Rotary and Oscillating Dental Instruments IFU & Detailed Reprocessing Instructions (EN, FR).