Root Canal Preparation Burs

Root canal preparation burs are the Busch FG instruments for the endodontic access cavity: the non-cutting-tip carbide endo taper (Busch No. 152Z), the non-cutting-tip diamond flames (8863GK fine and 863GKEF extra fine), and the 851 taper round and 857 torpedo diamonds for opening and refining the access. Every bur on this page is a genuine Busch instrument and ships from our US warehouse.

These specialized Busch root canal burs deliver fast, controlled cutting with superior concentricity and minimal vibration. Ideal for creating straight-line access, removing dentin, refining cavity walls, and locating canal orifices without unnecessary tooth structure removal.

Which Root Canal Preparation Bur Do You Need?

Busch No.	Pattern or size	Use
152Z 015	Carbide endo taper (cone) round, non-cutting tip — FG	Root canal access without gouging the chamber floor
851 012	Diamond taper (cone) round, medium grit — FG	Opening and shaping the access cavity
851 016	Diamond taper (cone) round, medium grit — FG	Opening and shaping the access cavity (larger head)
857 014	Diamond torpedo, medium grit — FG	Refining access walls with a defined margin
8863GK 012	Diamond flame, non-cutting tip, fine grit (red ring) — FG	Flaring canal orifices and finishing access walls
863GKEF 012	Diamond flame, non-cutting tip, extra fine grit (yellow ring) — FG	Final refinement of access walls and orifices

Clinical Use

Access is opened with the 851 taper round diamond, the walls are refined with the 857 torpedo, and the non-cutting-tip instruments — the 152Z carbide and the 8863GK/863GKEF diamond flames — finish the cavity and flare the canal orifices without cutting into the pulpal floor, so straight-line access is created while conserving tooth structure. Work at high speed with water spray and switch to the non-cutting tips once the chamber is reached.

Care and Reconditioning

Endodontic access burs are cleaned, disinfected, and sterilized between patients in a bur block; diamonds whose grit has dulled and carbides with chipped blades are discarded rather than reused. Our Dental Bur Reprocessing & Sterilization Guide covers the full workflow for Busch rotary instruments.

Compare With

Related Busch collections: Endodontic Burs by Busch, Non-Cutting Tip Carbide Burs, Round End Taper Diamonds, and Torpedo Burs & Diamonds; the hand instruments are in the Endodontic Instrument Collection. For cross-brand figure numbers and terminology, see the Bur Comparison Chart and the Dental Bur Glossary.

Dental Instruments, Tools, Burs, Diamonds and Polishers Made In Germany

FAQ

How do I choose the right item from this collection? Every product page details the exact specification, reference number, and application; for cross-brand references and terminology, see our Bur Comparison Chart, Speed Chart, and Bur Glossary — and our experts are a call away at (917) 480-2682 ext 101.

How should these instruments be reprocessed? Follow the manufacturer’s validated reprocessing instructions and the symbols on each product’s packaging; our reprocessing guide covers the general workflow.

Where are these instruments made? The instruments in this collection are manufactured by Busch & Co. in Engelskirchen, Germany — a specialist in rotary precision instruments since 1905 — and ship fast from our US warehouse.

Part of our Endodontic Instrument Collection hub for hand instruments used alongside these access-cavity burs.