You can produce aesthetic, long-lasting definitive crowns with the SprintRay 3D printing ecosystem and revolutionary SprintRay Ceramic Crown resin. For a simple workflow, we recommend using SprintRay Cloud Design to quickly upload your files and receive designs back in as little as a few minutes.
For those who want to design themselves, a few key settings must be adjusted.
The settings used for 3D printed crowns are different from milling. If you export your design with settings meant for a mill, you will likely experience fitment issues.
For best results, follow these parameters when designing and exporting a crown from your design software:
3Shape Settings
Fig. |
Settings |
Value |
|
A |
Minimum thickness - posterior |
1mm for all surfaces |
| A | Minimum thickness - anterior |
1mm for labial and incisal edges 0.5 mm for lingual surface |
| B | Extra cement gap | 0.12 mm |
| C | Cement gap | 0.04 mm |
| D | Distance to margin line | 0.8 mm |
| E | Smooth distance | 0.2 mm |
| F | Drill radius | 0.65 mm |
| G | Drill compensation offset | 0.66 mm |
| H | Margin line offset | 0.08 mm |
| I | Extension offset | 0.1 mm |
| J | Offset angle | 55 degrees |
Exocad Settings
Settings |
Value |
| Minimum thickness - posterior | 1mm for all surfaces |
| Minimum thickness - anterior |
1mm for labial and incisal edges 0.5 mm for lingual surface |
| Cement gap | 0.12 mm |
| Additional spacer | 0.02 mm |
| Margin ramp (angulation) | 45 degrees |
| Margin distance (overhang from margin) | 0.2 mm |
| Smoothing distance | Default |
| Check ‘Anticipate Milling’ and set the diameter |
Pro95 S: 0.2 mm Pro55 S: 0.11 mm |
| Proximal offset | -0.02 mm |
inLab Settings
Settings |
Value |
| Minimum thickness - posterior | 1mm for all surfaces |
| Minimum thickness - anterior |
1mm for labial and incisal edges 0.5 mm for lingual surface |
| Radial spacer | 140 µm |
| Occlusal spacer | 140 µm |
| Proximal contacts strength | 25 µm |
| Occlusal contacts strength | -150 µm |
| Dynamic Contact Strength | -150 µm |
| Minimal radial thickness | 1000 µm |
| Minimal occlusal thickness | 1000 µm |
| Margin thickness | 120 µm |
| Width of ramp | 80 µm |
| Angle of ramp | 60 degrees |
Download a copy of these Crown Design Guidelines below