Meta Dental Polishers, Mounted Stones and Diamond Discs for Lab Finishing

Lab finishing works best when you match the abrasive to the material: mounted stones for shaping, diamond discs and grinders for cutting hard materials, and rubber or silicone polishers for the final luster. Meta Dental Corp makes all of these, and Chase Dental Supply carries the full Meta Dental Corp finishing and polishing line for porcelain, zirconia, alloys, composites and acrylic.

This guide sorts Meta’s mounted stones, diamond rotary instruments and polishers by material and finishing stage, using the material guidance Meta publishes for each product.

Key Takeaways

• Meta mounted stones are color coded: green for porcelain, gold, silver alloys, amalgam and composites; pink for precious ceramic alloys; white for non-precious metals; red and blue for chrome cobalt and non-precious metal.
• Meta FG and RA green mounted stones are silicon carbide; the white versions are aluminum oxide for finishing composites.
• Meta rubber diamond impregnated polishers cut, abrade, remove scratches and smooth zirconia, porcelain, metals and hard materials.
• Meta diamond rubber polisher wheels (15 x 3.5mm) and points (6 x 16mm) give a high luster on porcelains and metals.
• Silicone acrylic polishers, bristle brushes and felt wheels handle denture and acrylic finishing.

Which Meta mounted stones should I use for each material?

Pick the stone color that matches the material you are finishing. Meta sells mounted stones and points in all types, colors and sizes in boxes of 100, and labels each color for specific materials.

FG and RA mounted stones

The Meta Mounted Stones FG and RA come 12 per pack in friction grip and right angle shanks. Meta lists the green version as compared to SHOFU Dura-Green.

Matching stone to material matters because a stone meant for soft alloys can glaze or wear quickly on chrome cobalt, while a coarse metal stone can chip porcelain. Keep a labeled set for each material on the bench so technicians grab the right one every time.

Keeping stones true

Mounted stones load up and lose their shape with use. A Meta Cleaning Stone and Diamond Dresser lets you clean and reshape them so they cut evenly again.

When should you use diamond discs and diamond grinders?

Use diamond rotary instruments when the material is too hard for conventional stones, such as zirconia and porcelain. Diamonds cut hard ceramics efficiently and leave a more controlled surface for the polishing steps that follow.

Meta offers diamond discs in all types and sizes and diamond grinders, including zirconia grinder wheels, sold one per pack. Use water or light pressure as directed by the manufacturer’s instructions for use to manage heat in ceramics.

Fiber cut discs

For cutting sprues and separating castings, Meta fiber cut discs come six per pack in FC1 (38 x 0.8 x 1.6mm), FC2 (63 x 0.8 x 6.3mm) and FC4 (101 x 0.8 x 6.3mm) sizes.

Running hard ceramics calls for the right handpiece too. Our Meta lab micromotors guide covers torque, speed and the Air Turbo for zirconia.

Which polishers give the best luster on porcelain, zirconia and metal?

Use rubber diamond impregnated polishers to remove scratches, then diamond rubber wheels and points for the final shine. Working through the grits in order gives a smoother surface than jumping straight to the finest polisher.

Rubber diamond impregnated polishers

Meta Rubber Diamond Impregnated Polishers are made for cutting, abrading, removing scratches and smoothing zirconia, porcelain, metals and hard materials. They are sold one per pack in multiple shapes and sizes.

Diamond rubber wheels and points

For high luster on porcelains and metals, the Meta Diamond Rubber Polisher Wheel measures 15mm by 3.5mm and the Meta Diamond Rubber Polisher Point measures 6mm by 16mm. Use the wheel on broad surfaces and the point for occlusal anatomy and embrasures.

How do you finish and polish acrylic in the lab?

Acrylic finishing usually runs from trimming, to silicone or rubber polishers, to brushes and pumice, then a felt or rag wheel for the final shine. Keep pressure light and keep the piece moving to avoid heat that can distort acrylic.

Meta Silicon Acrylic Polishers come ten per pack in several shapes, and Meta bristle brushes, brush wheels and felt wheels cover the lathe stage. For flexible partials, see our guide on finishing and polishing flexible partials with TCS abrasives, since those materials call for their own approach.

For the other brands we stock across the lab, see the dental lab and office supply brands guide.

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Frequently Asked Questions

What are green mounted stones used for?

Meta Dental Corp green mounted stones are recommended for porcelain, gold, silver alloys, amalgam and composites. The FG and RA green stones are silicon carbide and are recommended for porcelain, gold, amalgam and enamel.

Which Meta mounted stone is best for chrome cobalt?

Meta Dental Corp recommends its red mounted stones and blue mounted points for chrome cobalt alloys and non-precious metal. White mounted stones are recommended for non-precious metals.

What can rubber diamond impregnated polishers be used on?

Meta Dental Corp rubber diamond impregnated polishers are designed for cutting, abrading, removing scratches and smoothing zirconia, porcelain, metals and other hard materials.

What size are Meta diamond rubber polishers?

The Meta Dental Corp diamond rubber polisher wheel measures 15mm by 3.5mm and the point measures 6mm by 16mm. Both are diamond impregnated rubber for a high luster on porcelains and metals.

How do you clean a loaded mounted stone?

Use a cleaning stone or diamond dresser to remove debris and restore the shape of a mounted stone. Meta Dental Corp offers a Cleaning Stone and Diamond Dresser for this purpose.

The right abrasive at each stage saves chair time and remakes. Shop the full Meta Dental Corp finishing range at Chase Dental Supply, or call 888-548-7582 or email sales@chasedentalsupply.com for help building a finishing kit for your lab.