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Keystone Porcelain Finishing Disks — 500/Box · 3/4" · Medium
SKU 010-1086MFR# 1300080
$53.70
· Sold out
Size
3/4"
3/4"$53.70
7/8"$53.70
Grit
Medium
Medium$53.70
FineCoarse
The Keystone Bx/500 Porc Fin'G Disk-7/8 Coarse is a dental product supplied by Keystone for dental use. Catalog code 1300140.
Keystone Porcelain Finishing Disks — 500/Box is a ceramic & porcelain polisher from Keystone Industries.
This page carries 2 size options: 3/4", 7/8". This page carries 3 grit options: Medium, Fine, Coarse.
Find it on our Lab Burs & Rotary shelf, under Finishing & Polishing Wheels & Points.
Orders placed before 3 PM ET ship the same day when the item is on our shelf (otherwise within 3 business days), and ground shipping is free over $10.
Product
- Manufacturer
- Keystone Industries
- Manufacturer #
- 1300080
- Item code
- 010-1086
Catalog path
- Marketplace
- Laboratory
- Category
- Lab Burs & Rotary
- Subcategory
- Finishing & Polishing Wheels & Points
Ordering
- Status
- Sold out
More from Finishing & Polishing Wheels & Points
In stock in the same subcategory. Not the same product — check the specs before you swap.
Questions
What is it used for?
The Keystone Bx/500 Porc Fin'G Disk-7/8 Coarse is a dental product supplied by Keystone for dental use.
Which size and grit options are on this page?
This page carries 2 size options: 3/4", 7/8". This page carries 3 grit options: Medium, Fine, Coarse. Pick one to see its price, part number and stock.
When does it ship?
In-stock orders placed before 3 PM ET ship the same day; anything not on our shelf ships within 3 business days.Ground shipping is free over $10.
About ceramic and porcelain polishers
Polishing gives a ceramic a smooth and lustrous surface without adding a layer, unlike glazing. Sequence: a review describes polishing in three stages, coarse finishing, intermediate polishing and final polishing.
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.
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)
