Busch Crown Preparation Burs

Crown preparation burs are the rotary instruments used in fixed prosthodontics to reduce and finish a tooth for a crown or bridge. This collection holds the Busch diamonds and carbides, made in Germany, for every step of that sequence: round-end taper diamonds (6856, 856), football diamonds (379), flat-end and rounded-shoulder tapers (847, 847KR), flame diamonds (862), extra-fine finishing diamonds (847KREF, 862EF) and multi-fluted carbide finishers (48, 44E-F), on FG shanks in super coarse to extra fine grits.

The Crown Preparation Sequence, Bur by Bur

Most crown preparations need six burs. This is the sequence, with the Busch instrument for each step:

Swipe the table sideways to see every column →

The step-by-step technique, with the reasoning behind each bur, is in our guide to the best burs for crown preparation; margin design by restoration material is in the Crown Preparation Margin Guide.

Key Features & Benefits

• Complete shape selection for every step: depth-cutting and depth-orienting burs for uniform occlusal and axial reduction; tapered chamfer and shoulder diamonds for precise margin definition (metal-ceramic, all-ceramic, zirconia and lithium disilicate restorations); round-end tapered and football/egg-shaped burs for occlusal and lingual/incisal reduction; flame-shaped and needle burs for interproximal access and fine margin finishing; multi-fluted carbide finishing burs for ultra-smooth surfaces and excellent adaptation.
• Material and grit: coarse and medium diamond grits for rapid, efficient bulk reduction; fine and extra-fine diamonds for controlled shaping and margin refinement; tungsten carbide burs for smooth finishing and contouring without chatter.
• Clinical advantages: reduced vibration and heat generation for patient comfort and pulp safety; superior debris evacuation and visibility; FG shanks for high-speed handpieces with exceptional durability and cutting efficiency; suitable for all modern restorative materials — PFM, zirconia, lithium disilicate, gold and more.

From initial depth cuts to final margin refinement and surface polishing, this collection equips you with the right bur for every stage of crown preparation. Browse by shape — round-end tapers, torpedo and chamfer shapes, footballs, flames — or by grit from super coarse to extra fine.

FAQ

What burs are used for crown preparation? A coarse round-end taper diamond (Busch 6856) for reduction, a football (379) for the occlusal, a flat-end taper (847) for a shoulder or a round-end taper (856) for a chamfer, a flame (862) interproximally, then fine diamonds and multi-fluted carbide finishers.

Which bur is used for a chamfer margin, and which for a shoulder? A round-end taper (856 series) cuts a chamfer; a flat-end taper (847) cuts a shoulder; the 847KR rounded-edge version gives a rounded shoulder for all-ceramic crowns.

What grit diamond is best for crown prep? Coarse (green ring) or super coarse (black ring) for reduction, medium for shaping, fine (red ring) and extra fine (yellow ring) for finishing margins and axial walls.

Diamond or carbide for crown preparation? Diamonds for reduction and margins; carbides only at the end, where their cutting action leaves a smoother, scan-ready surface than a fine diamond.

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.

Further reading: Best Dental Burs for Crown Preparation · Crown Preparation Margin Guide · Bur Comparison Chart · Bur Color Coding & ISO Guide