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Vacalon Matrix Shapers, 5/Pack · Duo Large 10 × 22.7 mm
SKU 090-1012MFR# 51212
Type
Duo Large 10 × 22.7 mm
Vacalon Matrix Shapers are rotary tools for green-state (pre-sintered) zirconia. Unsintered zirconia is easy to adjust but fragile; these shapers remove material predictably so sprues can be smoothed and occlusal anatomy refined before sintering, without chips, cracks or damaged margins.
What it is used for
- Removing and smoothing sprue attachments
- Occlusal adjustment and contact refinement before sintering
- Refining anatomy so less adjustment is needed after sintering
Why labs choose it
- Made only for green-state zirconia – not for sintered material
- Keeps chipping and microfractures down near margins and contacts
- Works with all major zirconia systems
- Medium (gray), fine (white) and two-step Duo tools that carry both grits
- Runs best at 6,000–8,000 rpm
Shapes, sizes and speeds
Sold 5 per pack – pick the tool above.
| Shape | Size | Best speed | Maximum speed |
|---|---|---|---|
| Point, medium | 5.6 × 13 mm | 6,000 rpm | 20,000 rpm |
| Bullet, medium | 7 × 13 mm | 6,000 rpm | 20,000 rpm |
| Disc, medium | 15 × 0.3 mm | 6,000 rpm | 20,000 rpm |
| Tapered Barrel, medium | 6 × 15 mm | 6,000 rpm | 20,000 rpm |
| Point, fine | 4.3 × 12 mm | 8,000 rpm | 20,000 rpm |
| Two-step Duo, narrow | 7 × 19 mm | 8,000 rpm | 20,000 rpm |
| Two-step Duo, wide | 10 × 22.7 mm | 8,000 rpm | 20,000 rpm |
Details
- Shank: HP (104), 2.35 mm – fits a straight lab handpiece
- Sold 5 per pack
- Made in Germany
Product
- Manufacturer
- Vacalon
- Manufacturer #
- 51212
- Item code
- 090-1012
Catalog path
- Marketplace
- Laboratory
- Category
- Lab Burs & Rotary
- Subcategory
- Finishing & Polishing Wheels & Points
Ordering
- Status
- Ships in 3 business days
More from Finishing & Polishing Wheels & Points
Stocked in the same subcategory.
About flexible silicone polishers
A lab flexible silicone polisher carries its abrasive inside a flexible silicone body: one kind is silicone highly filled with micro-fine diamond. A study of reused polishers gave the loss of diamond particles through use as one reason their abrasive capability fell.
The FDA groups abrasive discs, abrasive points, polishing strips and polishing wheels as abrasive devices, Class I (21 CFR 872.6010): they remove excess restorative material and smooth rough surfaces, on a shank held by a handpiece.
ISO 21671 covers the most commonly used rotary polishers, mounted and unmounted, used by the dentist and in the dental laboratory.
How the types on this shelf differ
- Flexible Silicone Polishers — The abrasive is embedded in a flexible silicone body.
- Polishing Wheels — A wheel for the smoothing steps that follow grinding.
- Grinding Wheels — The coarse step: it shapes the work and removes excess material.
- Mounted Rubber Points — A rubber-bonded point already fixed on its own shank.
- Ceramic & Porcelain Polishers — Polishes the ceramic itself, in place of a glaze layer.
- Polishing Discs — The finer steps of the same series.
- Buffing Wheels — Carries the polishing agent to the work.
- Mounted Stones — A rigid bonded abrasive, for grinding and shaping.
- Separating & Cut-Off Discs — A thin wheel for cutting, where an abrasive disc works on its side.
- Composite Polishers — Made for resin composite.
- Acrylic Polishers & Trimmers — Made for denture acrylic, which is finished with burs, sandpaper and rubber wheels before it is polished.
- Abrasive Discs — Grinds and smooths with its face.
- Finishing Carbides — A bur made to finish a surface.
- Polishing Points & Cups — Rubber points, felt cones and bristle pins.
- Rotary Points — Silicone, rubber and polyurethane polishers.
- Heatless Wheels — Radial bristle discs and wheels, knife-edge discs and rubber abrasive cones, filed under the heatless wheels name.
What to look at when choosing
Sequence: a review describes polishing in three stages, coarse finishing, intermediate polishing and final polishing. Coarse tools shape the work and remove excess material; medium ones smooth out the grooves and scratches the coarse ones leave.
Surface: 0.2 micrometres of roughness is considered the threshold for a clinically acceptable restoration.
Speed: OSHA's abrasive-wheel rule has the spindle speed checked against the maximum operating speed marked on the wheel.
Reuse: the CDC states that burs, polishing points and rag wheels used on contaminated appliances or prostheses should be heat-sterilised, disinfected between patients, or discarded.
Sources: FDA 21 CFR 872.6010, Abrasive device and accessories · ISO 21671:2006, Rotary polishers · Does Sterilization Affect the Performance of Single-Step Resin Composite Polishers? (Dent J 2023) · A Comprehensive Review of the Surface and Chromatic Properties of Monolithic Zirconia: Polishing and Finishing Methods (Cureus 2024) · OSHA 29 CFR 1910.94, Ventilation (grinding, polishing and buffing operations) · OSHA 29 CFR 1910.211, Machinery and machine guarding: definitions · The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · Rao et al. 2015, Surface roughness of three heat-cured acrylic denture base resins with different conventional lathe polishing techniques (J Indian Prosthodont Soc) · OSHA 29 CFR 1910.215, Abrasive wheel machinery · ISO 3823-2:2003, Rotary bur instruments, Part 2: Finishing burs · CDC, Guidelines for Infection Control in Dental Health-Care Settings, 2003 (MMWR 52 RR-17)
