Frank Dental Diamond Burs UK: Complete Grit Guide for Crown Preparation & Finishing
When selecting Frank Dental diamond burs, understanding grit size is essential for controlling cutting efficiency, scratch depth and surface roughness.
At Crown Dental Burs Ltd, we are proud to supply premium German-manufactured burs from Frank Dental GmbH, trusted by clinicians across the UK for precision crown preparation and restorative finishing.
If you are searching for:
- Frank Dental diamond burs UK
- What grit dental bur to use
- Crown preparation grit sequence
- Diamond bur micron size guide
This guide explains exactly what each colour band means and when to use it clinically.
Black Band – Extra Coarse Diamond Bur
Particle Size: 151 – 213 Microns
Example Frank Dental Shapes:
- 847KR (Tapered shoulder)
- 856 (Chamfer)
- 801 (Round)
Clinical Use:
- Rapid reduction
- Bulk enamel and dentine removal
- Heavy restorative removal
Black band burs offer maximum cutting efficiency but leave a rough surface requiring refinement.
Best used at the start of aggressive reduction procedures.
Green Band – Coarse Diamond Bur
Particle Size: 107 – 181 Microns
Common Frank Dental Crown Prep Shapes:
- 847KR Coarse
- 856 Coarse
- 845KR Tapered shoulder
Clinical Use:
- Initial crown preparation
- Gross reduction
- Amalgam removal
- Cutting through ceramic emax crowns
Green band burs balance speed and control, but still create moderate surface roughness.
Follow with blue or red grit for refinement.
Blue Band – Medium Grit Diamond Bur
Particle Size: 66 – 126 Microns
Blue band burs are often the workhorse grit in restorative dentistry.
Used For:
- Refining axial walls
- Smoothing occlusal reduction
- General cavity preparation
- Composite shaping
They provide balanced cutting while improving surface uniformity.
For many clinicians, blue grit is the primary crown preparation bur before margin refinement.
Red Band – Fine Diamond Bur
Particle Size: 27 – 76 Microns
Red band burs are essential for margin finishing and precision refinement.
Used For:
- Crown margin definition
- Smoothing preparation walls
- Reducing scratch depth
- Pre-impression finishing
Fine grit burs significantly reduce surface roughness compared to coarse burs and improve restorative fit and bonding performance.
Yellow Band – Extra Fine Diamond Bur
Particle Size: 10 – 36 Microns
Yellow band burs are designed for:
- Final preparation smoothing
- Composite finishing
- Pre-polishing
- Enhancing surface adaptation
Extra fine grit helps reduce polishing time and optimise restorative aesthetics.
Why Grit Selection Matters in Crown Preparation
Using the correct Frank Dental grit progression:
Green → Blue → Red → Yellow
Helps:
✔ Reduce heat generation
✔ Control scratch depth
✔ Improve bonding
✔ Enhance restoration longevity
✔ Achieve smoother margins
✔ Improve scanner accuracy
Incorrect grit selection can:
- Increase microfracture risk
- Compromise bonding
- Increase polishing time
- Create uneven margin adaptation
Frank Dental Diamond Burs UK – Why Clinicians Choose Them
Frank Dental burs are manufactured using:
- High-quality natural diamond particles
- Uniform grit distribution
- Strong bonding technology
- Precision concentricity
- German engineering quality control
For clinicians working with zirconia, lithium disilicate, composite or traditional crown preparations, consistency matters.
Complete Frank Dental Grit Comparison Chart
| Colour Band | Grit | Micron Size | Surface Finish | Clinical Stage |
| Black | Extra Coarse | 151–213 µm | Very rough | Rapid reduction |
| Green | Coarse | 107–181 µm | Rough | Initial preparation |
| Blue | Medium | 66–126 µm | Moderate | Refinement |
| Red | Fine | 27–76 µm | Smooth | Margin finishing |
| Yellow | Extra Fine | 10–36 µm | Very smooth | Final finishing |
Looking for Frank Dental Diamond Burs in the UK?
Crown Dental Burs Ltd supplies the full Frank Dental diamond range, including:
- Crown preparation burs
- Chamfer burs
- Tapered shoulder burs
- Zirconia adjustment burs
- Composite finishing burs
If you’re unsure which grit sequence works best for your clinical workflow, our team can provide guidance tailored to your practice.
Explore our Frank Dental diamond bur range today or request a practice account.
