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Renfert Replacement Blades for Multipurpose Instrument — 10/Pack · Narrow
SKU 043-0457MFR# 10310100
Blade
Narrow
Wide$29.02
Narrow$37.49
The Renfert Replacement blades, narrow is a dental laboratory product supplied by Renfert for general dental laboratory use. Catalog code 10310100.
Renfert Replacement Blades for Multipurpose Instrument — 10/Pack is a carbide bur from Renfert.
This page carries 2 blade options: Wide, Narrow.
Find it on our Lab Burs & Rotary shelf, under Carbide Burs.
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
- Renfert
- Manufacturer #
- 10310100
- Item code
- 043-0457
Catalog path
- Marketplace
- Laboratory
- Category
- Lab Burs & Rotary
- Subcategory
- Carbide Burs
Ordering
- Status
- Ships in 3 business days
More from Carbide Burs
Stocked in the same subcategory.
Questions
What is it used for?
The Renfert Replacement blades, narrow is a dental laboratory product supplied by Renfert for general dental laboratory use.
Which blade options are on this page?
This page carries 2 blade options: Wide, Narrow. 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 operative carbides
The first use the FDA gives for a bur is cutting hard structures in the mouth, such as teeth or bone.
A dental bur is a rotary cutting device made from carbon steel or tungsten carbide. The FDA lists it as a Class I device (21 CFR 872.3240), for cutting teeth and bone and also the hard metals, plastics and porcelains that dental devices are made from. A carbide bur is one made from tungsten carbide.
The head is the cutting portion of a bur, and the shank is the part that fits into the handpiece. ISO 6360 identifies every dental rotary instrument by a 15-digit number.
How the types on this shelf differ
- Finishing Carbides — A bur made to finish a surface.
- Laboratory Carbides — Used at the bench on the metals, plastics and porcelains of dental devices, not in the mouth.
- Cross-Cut Burs — Named for its blade pattern.
- Operative Carbides — Made for cutting tooth structure, where a laboratory carbide is made for the bench.
- Diamond Burs — A shaped diamond head on its own shaft.
- Flexible Silicone Polishers — The abrasive is embedded in a flexible silicone body.
The shelf also files burs as specialty carbides and as kits; no source on our allowed list defines those groups, so this guide does not describe them.
What to look at when choosing a carbide bur
Head shape: the outline of the cutting edges, described from the shank to the tip.
Shank: the shaft of a bur is friction-grip or latch-type. ISO 1797 sets shank dimensions and material properties.
Size: ISO 2157 sets the nominal diameters of the working part of burs, laboratory burs, grinding instruments, diamond instruments and mandrels, and how they are designated.
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 872.3240, Dental bur · The Glossary of Prosthodontic Terms, 9th edition (J Prosthet Dent 2017) · ISO 13295:2007, Mandrels for rotary instruments · ISO 3823-2:2003, Rotary bur instruments, Part 2: Finishing burs · Does Sterilization Affect the Performance of Single-Step Resin Composite Polishers? (Dent J 2023) · ISO 7787-2:2020, Laboratory cutters, Part 2: Carbide laboratory cutters · Rao et al. 2015, Surface roughness of three heat-cured acrylic denture base resins with different conventional lathe polishing techniques (J Indian Prosthodont Soc) · ISO 7787-1:2016, Laboratory cutters, Part 1: Steel laboratory cutters · Comparative Analysis of Abrasive Materials and Polishing System on the Surface Roughness of Heat-Polymerized Acrylic Resins (Eur J Dent 2022) · FDA 21 CFR 872.4535, Dental diamond instrument · ISO 7711-1:2021, Diamond rotary instruments, Part 1: General requirements · ISO 1797:2017, Shanks for rotary and oscillating instruments · ISO 2157:2016, Nominal diameters and designation code numbers for rotary instruments · CDC, Guidelines for Infection Control in Dental Health-Care Settings, 2003 (MMWR 52 RR-17)
