Monolayer PMMA Discs(12-30mm) | CAD/CAM Temporary Crowns & Bridges

Monolayer PMMA Discs – Premium Single-Layer Solution for Temporary Restorations

Milling & Processing Workflow:

Step 1: CAD Design & Milling (15-30 minutes)

• Design temporary restoration in CAD software (3Shape, Exocad, DWOS)
• No enlargement needed - PMMA does not shrink during processing
• Recommended bur: 1.0-2.5mm diameter carbide burs
• Milling speed: 30,000-60,000 RPM
• Feed rate: High (PMMA is soft and easy to mill)
• Use dry or wet milling (wet milling reduces dust)
• Achieve <0.05mm margin accuracy with proper parameters

Step 2: Finishing & Polishing (10-15 minutes)

• Remove milling tabs and smooth edges with finishing burs
• Polish with rubber polishers or polishing paste
• Use progressive grits: coarse → medium → fine → extra fine
• Final polish with felt wheel and polishing compound for high gloss
• Clean thoroughly with alcohol or an ultrasonic cleaner

Step 3: Try-In & Adjustment (5-10 minutes)

• Check fit and occlusion in the patient's mouth
• Make minor adjustments if needed with finishing burs
• Re-polish adjusted areas
• Verify shade match with adjacent teeth

Step 4: Temporary Cementation

• Clean and dry the preparation and restoration
• Use temporary cement (zinc oxide eugenol, non-eugenol, or resin-based)
• Seat restoration with firm pressure
• Remove excess cement after initial set
• Check occlusion and make final adjustments if needed

💡 Pro Tip: PMMA temporary restorations can last 6-12 months with proper care. Instruct patients to avoid extremely hard foods and maintain good oral hygiene. For longer-term use, consider using stronger temporary cement.

Why Choose Monolayer PMMA?

The Monolayer PMMA is specifically designed for temporary restorations requiring uniform color and maximum strength. Key advantages include:

• Superior Strength: ≥120 MPa flexural strength - significantly higher than industry average for enhanced durability
• Excellent Color Stability: Single-layer design ensures uniform color throughout with no fading over time
• Easy to Mill & Polish: Soft material allows fast milling and achieves a high gloss finish easily
• Biocompatible: Low residual monomer (<1%) reduces risk of allergic reactions and irritation
• Cost-Effective: Affordable solution for temporary restorations at $8.90~$12.90 per disc
• Long-Term Use: Can last 6-12 months, ideal for extended temporary periods
• Versatile Applications: Suitable for crowns, bridges, implants, and full-arch restorations

Monolayer PMMA vs Multilayer PMMA

Recommendation: Choose Monolayer PMMA for cases requiring maximum strength and color consistency. Choose Multilayer PMMA for anterior cases requiring enhanced esthetics with a natural gradient.

Designed for Dental Laboratories

OnePro Dental works directly with dental laboratories worldwide, providing reliable CAD/CAM materials that combine performance, consistency, and cost efficiency.

The Monolayer PMMA Discs are an excellent choice for labs seeking reliable temporary restoration solutions with superior strength and color stability.

Frequently Asked Questions (FAQ)

💎 Product Features & PMMA Material Advantages

Q: What is PMMA, and why is it used for temporary restorations?
A: PMMA (Polymethyl Methacrylate) is a biocompatible acrylic resin ideal for temporary restorations. It offers excellent strength (≥120 MPa), easy milling and polishing, good esthetics, and can last 6-12 months - perfect for the temporary phase while waiting for final restorations.

Q: What makes OnePro Monolayer PMMA different from other PMMA discs?
A: Our Monolayer PMMA features ≥120 MPa flexural strength (vs industry average 90-110 MPa), <1% residual monomer (vs <2% average), and superior color stability. This means stronger, more biocompatible, and longer-lasting temporary restorations.

Q: How long can PMMA temporary restorations last?
A: With proper care, PMMA temporary restorations can last 6-12 months. This makes them ideal for extended temporary periods such as implant healing, orthodontic treatment, or while waiting for final restorations.

Q: Is PMMA biocompatible?
A: Yes! Our PMMA has <1% residual monomer content (industry average is <2%), ensuring excellent biocompatibility and minimal risk of allergic reactions or tissue irritation.

🔧 Milling & Processing

Q: Which CAD/CAM systems are compatible with Monolayer PMMA?
A: Monolayer PMMA Discs are compatible with all major CAD/CAM systems, including 3Shape, Exocad, DWOS, Roland, VHF, and more. Available in 98mm Open System and 95mm Zirkonzahn formats.

Q: What milling parameters should I use?
A: Recommended parameters:
• Bur size: 1.0-2.5mm diameter carbide burs
• Milling speed: 30,000-60,000 RPM
• Feed rate: High (PMMA is soft and easy to mill)
• Milling type: Dry or wet (wet reduces dust)
• No enlargement needed - PMMA does not shrink

Q: How do I achieve a high-gloss finish?
A: Use progressive polishing:
1. Remove milling marks with finishing burs
2. Polish with rubber polishers (coarse → medium → fine → extra fine)
3. Final polish with felt wheel and polishing compound
4. Clean with alcohol for a high-gloss finish

Q: Do I need to enlarge the design for shrinkage?
A: No! Unlike zirconia, PMMA does not shrink during processing. Design and mill at the final desired size.

Q: Can I adjust PMMA restorations after milling?
A: Yes! PMMA is easy to adjust with finishing burs. After adjustments, re-polish the adjusted areas to restore the smooth finish.

🎨 Shade Selection & Color

Q: How many shade options are available?
A: Monolayer PMMA is available in 17 comprehensive shades:
• 16 Vita shades: A1, A2, A3, A3.5, A4, B1, B2, B3, B4, C1, C2, C3, C4, D2, D3, D4
• 1 Bleach shade: BL
This complete range covers all clinical shade-matching needs.

Q: Does the color fade over time?
A: No! Our Monolayer PMMA features excellent color stability. The single-layer design ensures uniform color throughout the restoration with no fading, even after 6-12 months of use.

Q: Can I stain or characterize PMMA restorations?
A: Yes! You can apply external stains or characterization after polishing if needed. However, the 17 Vita shades usually provide excellent shade matching without additional staining.

🏥 Clinical Applications

Q: What temporary cement should I use?
A: You can use various temporary cements:
• Zinc oxide eugenol: Traditional, good retention
• Non-eugenol: For patients sensitive to eugenol
• Resin-based: Stronger retention for longer-term use (6-12 months)
Choose based on expected duration and patient needs.

Q: Can PMMA be used for implant temporaries?
A: Yes! PMMA is excellent for immediate load implant temporaries. The ≥120 MPa strength provides reliable performance during the healing period (3-6 months).

Q: Is PMMA suitable for full-arch temporary restorations?
A: Yes! PMMA is ideal for full-arch hybrid dentures and temporary bridges. The high strength and low water absorption ensure long-term stability.

Q: What should I tell patients about caring for PMMA temporaries?
A: Instruct patients to:
• Avoid extremely hard or sticky foods
• Maintain good oral hygiene (brush gently, floss carefully)
• Avoid staining foods/drinks if possible (coffee, tea, red wine)
• Contact the office if the temporary becomes loose or breaks

📦 Ordering & Packaging

Q: What thickness and shade combinations are available?
A: Monolayer PMMA is available in:
• 8 thickness options: 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 30mm
• 17 shade options: 16 Vita shades (A1-D4) + BL bleach shade
• 2 system options: 98mm Open System, 95mm Zirkonzahn
• Price: $8.90~$12.90 per disc 

Q: How many restorations can I get from one disc?
A: Typical yield from a 20mm disc:
• Single crowns: 8-12 units
• 3-unit bridges: 2-3 bridges
• Full-arch (12-14 units): 1 arch from 25-30mm disc

Thicker discs (25-30mm) are ideal for full-arch cases. Actual numbers vary based on restoration size and nesting efficiency.

Q: Do you offer sample discs for testing?
A: Yes! We offer sample discs for qualified dental laboratories. Contact our sales team at oneprodental@gmail.com to request samples and test the quality firsthand.

Q: What is your shipping time?
A: We offer fast global shipping with delivery in 5-10 business days. Express shipping options are available for urgent orders. Free shipping on orders over $500!

🛠️ Technical Support

Q: What if I need help with milling parameters or processing?
A: Our technical support team is here to help! We provide assistance with milling parameters, polishing techniques, troubleshooting, and workflow optimization. Contact us at oneprodental@gmail.com anytime.

Q: Do you offer bulk pricing for dental laboratories?
A: Yes! We provide competitive volume discounts for dental laboratories. Contact our sales team for bulk pricing, partnership opportunities, and customized solutions tailored to your laboratory's needs.

💬 Still have questions? Contact our expert team at oneprodental@gmail.com or use the live chat feature. We're committed to your success with every restoration!

OnePro PMMA Series