No products found
Choosing CAD/CAM Blocks for Your Practice
- Material Selection by Indication — Match block material to clinical requirements for optimal outcomes. Zirconia suits posterior crowns and bridges, while glass-ceramics excel in aesthetic anterior zones requiring natural translucency.
- Shade and Translucency Options — Select shades that match your patient's dentition accurately. Multi-layer blocks offer gradient translucency for lifelike restorations without manual staining in many cases.
- Block Size and Machine Compatibility — Verify block dimensions match your milling unit specifications. Common sizes include 40mm and 55mm heights; check manufacturer guidelines for your specific CAD/CAM system.
- Pre-Sintered vs Fully Sintered — Pre-sintered blocks mill faster but require sintering ovens. Fully sintered options eliminate the sintering step, reducing workflow time for practices without furnace equipment.
- Strength and Flexural Properties — Consider load-bearing requirements for each restoration site. High-strength zirconia offers superior fracture resistance for posterior bridges, while lithium disilicate balances strength with aesthetics.
- Storage and Handling Requirements — Store blocks in dry conditions away from moisture exposure. Proper storage prevents material degradation and ensures consistent milling results; check expiry dates before clinical use.
CAD/CAM Block Types at a Glance
| Block Type | Primary Use | Aesthetic Quality | Strength Level |
|---|---|---|---|
| Zirconia | Posterior crowns, bridges | Moderate to high | Very high |
| Lithium Disilicate | Anterior crowns, veneers | Excellent | High |
| PMMA | Temporaries, long-term provisionals | Good | Moderate |
| Composite Resin | Inlays, onlays, veneers | Good | Moderate |
| Hybrid Ceramic | Inlays, onlays, single crowns | Very good | Moderate to high |
How to Select CAD/CAM Blocks
- Identify the restoration type and location to determine required strength and aesthetics.
- Check your milling machine specifications for compatible block sizes and holder types.
- Choose material based on clinical indication: zirconia for strength, ceramics for aesthetics.
- Select appropriate shade using manufacturer shade guides matched to patient dentition.
- Confirm sintering requirements align with your available laboratory equipment.
Availability & Delivery in Egypt
MedSTA offers CAD/CAM blocks with transparent EGP pricing and nationwide delivery across Egypt. Store blocks in climate-controlled conditions to maintain material integrity in varying temperatures.
Frequently Asked Questions
What is the difference between zirconia and lithium disilicate blocks?
What is the difference between zirconia and lithium disilicate blocks?
Zirconia offers superior strength for posterior use; lithium disilicate provides better translucency for anterior aesthetics.
Can I use any CAD/CAM block with my milling machine?
Can I use any CAD/CAM block with my milling machine?
No, verify block dimensions and holder compatibility with your specific milling system before ordering.
Do all zirconia blocks require sintering?
Do all zirconia blocks require sintering?
Pre-sintered zirconia requires furnace sintering; fully sintered blocks are ready after milling and polishing.
How should I store CAD/CAM blocks in Egypt?
How should I store CAD/CAM blocks in Egypt?
Store in dry, temperature-controlled environments away from humidity to prevent material degradation.
What block type is best for temporary restorations?
What block type is best for temporary restorations?
PMMA blocks are ideal for provisionals, offering good aesthetics and easy adjustment.
Can I mill full-contour crowns from hybrid ceramic blocks?
Can I mill full-contour crowns from hybrid ceramic blocks?
Yes, hybrid ceramics suit full-contour single crowns with good aesthetics and moderate strength.
How do multi-layer blocks improve restoration aesthetics?
How do multi-layer blocks improve restoration aesthetics?
Multi-layer blocks feature gradient shading and translucency that mimics natural tooth structure.