Rocky

Rocky – A Breakthrough in Crown Cutting

A new era in powering through zirconia begins.

Rocky, Komet's groundbreaking crown cutter, redefines efficiency with unmatched sharpness, durability, and speed. Engineered for seamless precision, it effortlessly tackles all-ceramic crowns—including the toughest zirconia—saving you time while ensuring superior cutting performance.

Key Features and Benefits

Time Efficiency

Enables practitioners to save up to 87%* of the time required to cut a ceramic crown.

Exceptional Sharpness

The new all-ceramic crown cutter offers unmatched 74%* higher initial sharpness compared to competitor products.

Extended Durability

Designed with an exceptional lifespan, significantly outlasting existing products.

Innovative Diamond Grit

Delivers superior performance through an innovative, diamond grit unmatched by any other on the market.

Premium Design

Features a distinctive rose gold shank for easy identification.

*Source: Komet Dental TestLab, mechanical cutting test 2025. Test based on comparison to competitive average *²German utility model GM 20 2025 100 047

Separation of All-Ceramic Crowns

• Split all-ceramic crowns with Rocky (CERCS, CERCSC): In front teeth, cut across the axial surface up to and beyond the incisal edge. Molars: Cut along the occlusal surface to simply break the crown open.
• Adhesive crowns can be opened piece by piece with crown dilating forceps. Start in the cervical region – as far as you can – and then remove further fragments step by step, working in an incisal or occlusal direction. Like this, lever forces exerted on the crown core can be prevented to a large extent.
• Grind down any remaining fragments with the longer crown-cutter CERC.

Directions for Use

• Optimum speed: 160,000 rpm in the micro motor recommended with the use of the new Synea Power edition handpiece.
• Always work with sufficient cooling (at least 50 ml/min).
• Do not exceed a maximum contact pressure of 2N.
• We recommend reducing the speed to 120,000 rpm when working on alloys that make instruments "skip". Alternatively, you can work with a dental turbine at low contact pressure.
• For an optimum cutting performance, apply the instrument to the crown/filling at an angle of 45°.

Rocky & Synea Power Edition: Your Ultimate Crown Removal Duo

Experience the unbeatable synergy of Rocky and the Synea Power Edition handpiece. Engineered for effortlessly removing even the toughest all-ceramic crowns, this duo delivers exceptional sharpness, durability, and precision—while protecting your standard handpieces from excessive wear.

The Synea Power Edition is a high-performance handpiece designed for heavy-duty dental applications. Engineered for advanced ceramics like zirconia, it offers superior torque, improved cutting efficiency, and a 20%* longer service life. By using this specialist for demanding procedures, you extend the lifespan of your existing handpieces. With an innovative black push-button for effortless bur changes and an effective cooling spray for consistent cutting, this durable handpiece minimizes downtime and maximizes precision.

Engineered for precision and built for power: The Rocky crown cutter and Synea Power Edition handpiece redefine crown removal, effortlessly tackling even the hardest all-ceramic crowns, including zirconia.

Synea Power Edition Features

1. extra easy – bur changes with unique and distinctive black push-button design
2. extra precise – with new head design for better bur guidance
3. extra robust – for less service costs
4. extra strong – with more torque and better removal rate
5. extra durable – with at least 20%* extended lifetime
6. extra tough – for the removal of high-strength materials
7. extra solid – chucking system with more than 20%* more clamping force

*Source: W&H test laboratory for verification, test report 1124