Multilayer PMMA Disc(12-30mm) | Full-Arch Hybrid Prosthetics

Milling & Processing Workflow:

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

• Design temporary restoration in CAD software (3Shape, Exocad, DWOS)
• CRITICAL: Orient restoration correctly - ensure gradient flows from cervical (bottom/darker) to incisal (top/lighter)
• 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
• Note: Gradient will be visible after polishing - darker at cervical, lighter at incisal

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

• Check fit and occlusion in the patient's mouth
• Verify gradient orientation - darker at gingival margin, lighter at incisal edge
• Make minor adjustments if needed with finishing burs
• Re-polish adjusted areas
• Verify shade match and gradient appearance 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

🎨 Gradient Orientation is Critical: Always ensure the restoration is oriented correctly during milling. The gradient should flow from cervical (darker) to incisal (lighter) to achieve natural-looking results. Incorrect orientation will result in reversed esthetics - lighter at gingival margin and darker at incisal edge.

Why Choose Multilayer PMMA?

The Multilayer PMMA is specifically designed for temporary restorations requiring enhanced esthetics with natural gradient. Key advantages include:

• Superior Esthetics: 5-layer gradient creates natural depth and vitality that single-layer materials cannot achieve
• Same High Strength: ≥120 MPa flexural strength - same as monolayer for reliable durability
• Time Savings: Eliminate manual staining and layering (save 15-20 minutes per case)
• Consistent Results: Factory-controlled gradient ensures predictable, batch-to-batch esthetic outcomes
• Natural Tooth Mimicry: Gradient replicates natural tooth color transition from cervical to incisal
• Enhanced Patient Satisfaction: More natural appearance improves patient confidence during the temporary phase
• Versatile Applications: Ideal for full-arch, multi-unit, and anterior cases requiring enhanced esthetics

Multilayer PMMA vs Monolayer PMMA

Recommendation: Choose Multilayer PMMA for cases requiring enhanced esthetics with natural gradient (full-arch, multi-unit, anterior). Choose Monolayer PMMA for cases prioritizing maximum strength and color consistency.

Designed for Dental Laboratories

OnePro Dental collaborates closely with dental laboratories worldwide, offering reliable CAD/CAM materials that strike a balance between performance, consistency, and cost efficiency.

The Multilayer PMMA Discs are an excellent choice for labs seeking enhanced esthetic temporary restoration solutions with natural gradient and superior appearance.

Frequently Asked Questions (FAQ)

💎 Product Features & Multilayer Gradient Advantages

Q: What makes Multilayer PMMA different from Monolayer PMMA?
A: Multilayer PMMA features a 5-layer gradient design with natural color transition from cervical (darker) to incisal (lighter), mimicking real tooth structure. The monolayer has a uniform color throughout. Both have the same ≥120 MPa strength, but Multilayer provides superior esthetics for cases where natural appearance is critical.

Q: How does the 5-layer gradient work?
A: The gradient flows from cervical layer (darker, bottom) → body layer (medium, middle) → incisal layer (lighter, top). This replicates natural tooth color transition and creates depth and vitality that single-layer materials cannot achieve.

Q: Do I need to stain Multilayer PMMA?
A: No! The gradient is factory-integrated into the material. Simply mill with correct orientation and polish - the gradient will be visible. This saves 15-20 minutes compared to manual staining or layering.

Q: Is the strength the same as Monolayer PMMA?
A: Yes! Multilayer PMMA has the same ≥120 MPa flexural strength as Monolayer - significantly higher than industry average (90-110 MPa). You get enhanced esthetics without sacrificing strength.

🔧 Milling & Processing

Q: How do I orient the restoration correctly during milling?
A: Critical: The gradient must flow from cervical (darker, bottom) to incisal (lighter, top). In your CAD software, position the restoration so the cervical margin is at the bottom of the disc, and the incisal edge is at the top. Incorrect orientation will reverse the gradient and compromise esthetics.

Q: What happens if I mill the restoration upside down?
A: If milled incorrectly, the gradient will be reversed - the gingival margin will be lighter and the incisal edge will be darker, resulting in an unnatural appearance. Always verify orientation before milling.

Q: Which CAD/CAM systems are compatible with Multilayer PMMA?
A: Multilayer 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)
• Orientation: Cervical at bottom, incisal at top
• 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
The gradient will be clearly visible after polishing.

🎨 Shade Selection & Gradient

Q: How many shade options are available?
A: Multilayer 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
Each shade features the same 5-layer gradient structure.

Q: Can I still apply surface stains for characterization?
A: Yes! While the gradient is pre-integrated, you can still apply surface stains after polishing for additional characterization if needed. However, the 5-layer gradient usually provides excellent natural appearance without additional staining.

Q: How does the gradient affect the final appearance?
A: The gradient creates natural depth and vitality by mimicking real tooth structure - darker at the cervical area (like dentin) and lighter at the incisal area (like enamel). This provides superior esthetics compared to uniform single-layer materials.

🏥 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: Is Multilayer PMMA suitable for full-arch restorations?
A: Yes! Multilayer PMMA is ideal for full-arch temporary restorations (12-14 units). The 3-layer gradient provides a natural appearance across the entire arch, and thicker discs (25-30mm) accommodate full-arch cases easily.

Q: When should I choose Multilayer over Monolayer?
A: Choose Multilayer PMMA when:
• Enhanced esthetics is important (anterior, full-arch)
• Natural gradient appearance is desired
• Patient will wear a temporary for an extended period
• Multi-unit or full-arch cases requiring a natural look

Choose Monolayer when:
• Maximum color consistency is needed
• Posterior restorations where esthetics is less critical
• Budget is a primary concern

Q: How long can Multilayer PMMA temporaries last?
A: With proper care, Multilayer PMMA temporary restorations can last 6-12 months, the same as Monolayer. The gradient does not fade over time.

📦 Ordering & Packaging

Q: What thickness and shade combinations are available?
A: Multilayer 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

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 see the gradient effect 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 orientation or processing?
A: Our technical support team is here to help! We provide assistance with proper orientation, milling parameters, polishing techniques, troubleshooting, and workflow optimization. Contact us at oneprodental@gmail.com anytime.

💬 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