Busch & Co. · Collection

Dental Lab Burs - Model Casting Technique

Dental Lab Burs - Model Casting Technique represents one of the most essential skillsets in modern dental laboratory work, combining precision tooling with refined casting methodology to achieve consistently accurate results. Whether you are preparing dies, trimming models, or finishing cast restorations, selecting the right bur and applying the correct technique is fundamental to the quality of the final prosthetic outcome.

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Since 1905 · ISO 13485 · Made in GermanyShips from the US
Dental Lab Burs - Model Casting Technique
295 instruments
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Guides & charts for this collection

Reference pages already linked from this collection, in one place.

Care guideDental Bur Reprocessing & Sterilization GuideChartDental Bur Speed ChartChartBur Comparison ChartGuideColor Coding & ISO GuideGlossaryGlossary

Which Model Casting Lab Bur Do You Need?

Start with the step in the casting workflow, then open the matching sub-collection; the complete list of Busch numbers by instrument type follows further down the page.

Carbide burs and cutters6 items
Category What it covers
Dental Lab Carbide Bur Collection HP carbide burs and cutters: round, fissure, inverted cone, bud, flame, pear and more
Double Cut (Crosscut) Carbide Cutters carbide cutters in coarse to super-fine double-cut toothings
Carbide Flame Cutters for Dental Labs flame-shaped carbide cutters
Left-Handed Carbide Cutters left-hand cut carbide cutters
MIDI Carbide Burs compact MIDI carbide burs
SHORTIE Carbide Burs short-shank SHORTIE carbide burs
Diamond burs2 items
Category What it covers
LongLife Sintered Diamond Lab Burs sintered diamond burs and disc
HP Dental Lab Diamond Burs HP diamond lab burs
Abrasives, wheels and cutting-off discs5 items
Category What it covers
Abrasives for Medium-Hard Metal Alloys mounted abrasives for alloys
Abrasive Discs, Stones & Wheels abrasive discs, stones and wheels
Corundum Abrasive Wheels pink unmounted wheels
Dental Laboratory Lathe Wheels lathe wheels
Fiber Cutting-Off Discs fiber-reinforced cutting-off discs
Pre-polishing and polishing5 items
Category What it covers
Pre-Polishers for Model Casting steel wheel pre-polisher for chrome-cobalt
Universal Laboratory Pre-Polishers universal pre-polishers
2 Step Laboratory Polishers for Metal Alloys two-step alloy polishers
Dental Lab Polishers laboratory polishers
Polishing Soft Buff Wheels brushes, buffs and soft wheels

Understanding Model Casting in the Dental Lab

The model casting process demands a thorough understanding of material behavior, rotary instrument selection, and controlled pressure application. Dental lab burs are engineered in a variety of shapes — including round, fissure, flame, and wheel — each designed to serve a specific function during the casting and finishing workflow. Using the appropriate bur for each stage minimizes material waste, reduces the risk of model distortion, and preserves the integrity of critical anatomical details.

Choosing the Right Burs for Casting Work

When working with cast metal frameworks, stone models, or resin-based materials, the choice of bur directly influences the efficiency of the Dental Lab Burs - Model Casting Technique. Carbide and diamond burs are commonly employed depending on the material hardness and the degree of surface refinement required. Proper RPM settings, adequate cooling, and consistent hand pressure are equally important factors in achieving a clean, accurate result.

Best Practices for Precision and Longevity

  • Always match bur type to the specific material being worked on
  • Maintain recommended rotational speeds to avoid overheating
  • Inspect burs regularly and replace worn instruments promptly
  • Use light, intermittent strokes to preserve model detail
  • Store burs properly to maintain sharpness and prevent contamination

Find a Model Casting Instrument by Busch Number

Every product currently in this collection, grouped by instrument type. Open a group and select a Busch number to see the full specification.

Carbide burs, saws and wheels (99)25 items
1 003 1 004 1 005 1 006
1 007 1 008 1 009 1 010
1 012 1 014 1 016 1 018
1 021 1 023 1 025 1 027
1SXM 010 1SXM 012 1SXM 014 1SXM 016
1SXM 018 1SXM 021 1SXM 023 2 006
2 007 2 008 2 009 2 010
2 012 2 014 2 016 2 018
2 023 3 012 21 008 21 009
21 010 21 012 21 014 21 016
21 018 21 021 21 023 21L 010
21L 012 21L 014 21R 010 21R 012
21R 014 23 008 23 009 23 010
23 012 23 014 23 016 23L 010
23L 012 23R 008 23R 010 23R 012
23R 014 23R 016 23R 018 31 008
31 009 31 010 31 012 31 014
31 016 31 018 31 021 31 023
31L 010 31L 012 31R 009 31R 010
31R 012 31R 014 31R 016 31R 018
33 008 33 009 33 010 33 012
33 014 33 016 33 018 33 021
33 023 33L 010 33L 012 33L 016
33R 010 33R 012 33R 014 33R 016
33R 018 45 018 231 023
Carbide cutters (51)13 items
421X 027 421X 031 421X 040 421X 050
421X 060 423FX 060 423X 060 424FX 040
424FX 060 424X 040 424X 060 424X 070
424X 080 425FX 040 425FX 060 HP 425FX 060 HP
425X 040 425X 060 HP 425X 060 HP 425X 070
426FX 023 426FX 060 426X 023 426X 060
427FX 029 427FX 060 427X 029 427X 060
428FX 023 428FX 060 428X 023 428X 060
429FX 031 429FX 040 429FX 045 HP 429FX 045 HP
429FX 060 HP 429FX 060 HP 429X 031 429X 040
429X 045 HP 429X 045 HP 429X 060 HP 429X 060 HP
431FX 023 431X 023 432FX 023 432X 023
433FX 023 433X 023 433X 060
MIDI carbide burs (18)5 items
M 426FFX 016 M 426FFX 023 M 426FX 016 M 426FX 023
M 426X 016 M 426X 023 M 428FFX 016 M 428FFX 023
M 428FX 016 M 428FX 023 M 428X 016 M 428X 023
M 433FFX 016 M 433FFX 023 M 433FX 016 M 433FX 023
M 433X 016 M 433X 023
SHORTIE carbide burs (32)8 items
S 420FX 018 S 421FX 010 S 421FX 014 S 421FX 023
S 421X 014 S 421X 023 S 422FX 014 S 422FX 023
S 422X 014 S 422X 023 S 423FX 014 S 423FX 023
S 423X 014 S 423X 023 S 426FX 014 S 426FX 023
S 426X 014 S 426X 023 S 427FX 023 S 427X 023
S 428FX 023 S 428X 023 S 430FX 023 S 430X 023
S 431FX 014 S 431FX 023 S 431X 014 S 431X 023
S 433FX 014 S 433FX 023 S 433X 014 S 433X 023
LongLife sintered diamond burs (13)4 items
1351 050 1837 031 1850 031 1881 050
1893 050 1941 210 3351 050 3368 016
3818 080 3850 031 3859 031 3859 050
3862 031
Cutting-off discs (5)2 items
438 220 438 220 438 400 438 400
438T 260
Abrasives and wheels (54)14 items
601 030 602 040 603 050 609 060
613 065 619 050 620 050 623 060
624 060 627 060 632 065 633 085
636 025 637 025 638 030 639 035
640 050 646 018 648 020 649 025
650 028 651 033 652 033 656 040
657 050 658 065 661 030 662 035
663 050 665 065 666 033 667 040
671 050 677 050 682 060 703 130
711 080 712 095 716 160 721 125
722 160 731 065 732 050 733 035
743 135 744 110 749 130 755 060
760 065 767 160 772 190 777 220
798 750 798 750
Polishers and pre-polishers (15)4 items
9602 220 9602G 220 9603 220 9603G 220
9605 030 9641 220 9644 250 9660 220
9702 145 9702G 145 9704 050 9706 055
9706G 055 9712 145 9716 055
Brushes, buffs, cloth and paste (8)2 items
9636 190 9638 190 9642 220 9643 220
9646 9736 140 9738 140 9738 220

Clinical Use

The instruments in this collection follow the model casting (cast partial denture framework) workflow in the laboratory: carbide cutters and burs for trimming and contouring castings, fiber-reinforced cutting-off discs for cutting and separating on metal alloy castings, mounted abrasives and wheels for grinding, and pre-polishers, polishers, brushes and buffs for the final finish. Nearly all items have an HP shank for the straight handpiece.

Care and Reconditioning

Clean, disinfect and sterilize the burs, abrasives and polishers between uses following the manufacturer instructions, and replace an instrument once it loses cutting or polishing performance or shows damage. Our Dental Bur Reprocessing & Sterilization Guide covers the workflow for Busch rotary instruments; maximum speeds are in the Dental Bur Speed Chart.

Compare With

Related Busch collections: Dental Lab Burs for Metal Alloy Technology, Dental Lab Burs for Model Making, Dental Lab Burs for Plastics Technology, Dental Lab Abrasives for Hard Metal Alloys, and Busch Dental Lab Bur Collection.

Reference resources: Bur Comparison Chart · Speed Chart · Color Coding & ISO Guide · Glossary

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

FAQ

What types of burs are most commonly used in model casting?

Carbide and diamond burs are the most widely used in dental lab casting work, selected based on the material and the level of surface detail required.

How does the Dental Lab Burs - Model Casting Technique improve restoration quality?

Applying the correct technique ensures dimensional accuracy, smooth surface finishes, and reduced finishing time, all of which contribute to a better-fitting, higher-quality restoration.

How often should dental lab burs be replaced?

Burs should be inspected after each use and replaced when signs of wear, dulling, or damage are observed to maintain consistent results.

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Made in Germany, shipped from the US
Busch & Co. has been making burs in Germany since 1905, under ISO 13485.
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Dental Lab Burs by Busch & Co. 855 products All categoriesShop Busch Burs by Category

  • Fast & Secure Shipping

    Fast and secure delivery from Germany and our US warehouse to your door.

  • Manufactured in Germany

    Crafted by skilled professionals in Germany for unmatched longevity.

  • Trusted by Experts

    Preferred and trusted by dental professionals across the globe.

  • Legacy of Excellence

    A tradition of innovation and craftsmanship since 1905 (Busch) and 1921 (Zepf).

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