Acetal Discs for Dental Labs - Premium Quality | OnePro Dental

Acetal Discs – Premium Flexible Material for Metal-Free Partial Dentures & Clasps

Milling & Processing Workflow:

Step 1: CAD Design & Milling (20-40 minutes)

• Design partial denture clasp or framework in CAD software (3Shape, Exocad, DWOS)
• Design with appropriate retention and undercut engagement
• No enlargement needed - acetal does not shrink during processing
• Recommended bur: 1.0-2.5mm diameter carbide burs
• Milling speed: 25,000-50,000 RPM
• Feed rate: Moderate to high (acetal is relatively soft)
• Use dry or wet milling (wet milling reduces heat buildup)
• Achieve precise fit with <0.1mm tolerance

Step 2: Finishing & Polishing (15-25 minutes)

• Remove milling tabs carefully with sharp instruments
• Smooth edges and surfaces 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 a smooth finish
• Clean thoroughly with alcohol or an ultrasonic cleaner
• Important: Smooth finish reduces plaque accumulation and enhances patient comfort

Step 3: Adjustment & Fitting (10-20 minutes)

• Try a clasp or framework on model or in patient's mouth
• Check retention and stability
• Adjust clasp arms if needed - acetal is flexible and can be adjusted
• Verify proper engagement of undercuts
• Ensure patient comfort - no sharp edges or pressure points
• Re-polish adjusted areas

Step 4: Delivery & Patient Care Instructions

• Instruct patient on insertion and removal technique
• Provide cleaning instructions (mild soap and water or denture cleaner)
• Advise against hot water (can cause deformation)
• Store in water or denture solution when not in use
• Schedule follow-up for retention check and adjustments

💡 Pro Tip: Acetal clasps provide excellent retention through flexibility rather than rigidity. The material's resilience allows clasps to engage undercuts comfortably while maintaining long-term retention. Adjust retention by modifying clasp arm length and thickness rather than bending.

Why Choose Acetal for Partial Dentures?

The Acetal Discs provide superior advantages for metal-free partial dentures:

• Superior Esthetics: Eliminates visible metal clasps - tooth-colored or clear clasps blend naturally with teeth
• Enhanced Comfort: Flexible material adapts to tissue movement, reducing pressure points and irritation
• Excellent Retention: ≥60 MPa tensile strength provides reliable clasp retention despite flexibility
• Hypoallergenic: Metal-free composition eliminates allergic reactions to nickel, chromium, or cobalt
• Lightweight: Significantly lighter than metal frameworks for improved patient comfort
• Biocompatible: ISO 10993 certified for safe, long-term oral use
• Cost-Effective: Affordable solution at $18.90-$22.90 per disc
• 19 Color Options: Complete esthetic versatility for any clinical situation

Acetal vs Metal Clasps

Recommendation: Choose Acetal for anterior partial dentures requiring superior esthetics, patients with metal allergies, or cases prioritizing comfort. Choose metal for maximum retention in posterior areas or when precise adjustability is critical.

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 Acetal Discs are an excellent choice for labs seeking high-quality flexible materials for metal-free partial dentures and clasps.

Frequently Asked Questions (FAQ)

💎 Product Features & Acetal Material Advantages

Q: What is acetal, and why is it used for partial dentures?
A: Acetal (polyoxymethylene/POM) is a high-performance thermoplastic polymer that combines flexibility, strength, and biocompatibility. It's ideal for partial dentures because it provides metal-free esthetics, comfortable flexibility, hypoallergenic properties, and excellent retention - perfect for patients with metal sensitivities or high esthetic demands.

Q: What makes OnePro Acetal Discs different from other flexible denture materials?
A: Our Acetal Discs feature ≥60 MPa tensile strength (higher than average), ISO 10993 biocompatibility certification, and 19 comprehensive color options (16 Vita + BL + Pink + Clear). This provides superior strength, safety, and aesthetic versatility compared to standard flexible materials.

Q: How does acetal compare to metal clasps?
A: Acetal provides superior esthetics (tooth-colored/clear vs visible metal), enhanced comfort (flexible vs rigid), hypoallergenic properties (no metal allergies), and lighter weight. However, metal clasps offer more precise adjustability and may provide stronger retention in some cases. Choose acetal for anterior esthetics and comfort, metal for maximum posterior retention.

Q: Is acetal biocompatible and safe?
A: Yes! Our Acetal Discs are ISO 10993 certified for biocompatibility, ensuring safe long-term oral use. The material is hypoallergenic and eliminates risks of metal allergies (nickel, chromium, cobalt) common with cast metal clasps.

🔧 Milling & Processing

Q: Which CAD/CAM systems are compatible with Acetal Discs?
A: Acetal Discs are compatible with all major CAD/CAM milling systems including Roland, VHF, Amann Girrbach, Sirona, and more. Available in 98mm Open System and 95mm Zirkonzahn formats.

Q: What milling parameters should I use for acetal?
A: Recommended parameters:
• Bur size: 1.0-2.5mm diameter carbide burs
• Milling speed: 25,000-50,000 RPM
• Feed rate: Moderate to high
• Milling type: Dry or wet (wet reduces heat)
• No enlargement needed - acetal does not shrink
• Achieve <0.1mm tolerance for precise fit

Q: How do I achieve a smooth finish on acetal clasps?
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 smooth finish
Smooth finish is critical to reduce plaque accumulation and enhance comfort.

Q: Can I adjust acetal clasps after milling?
A: Yes, but different from metal. Acetal clasps can be trimmed or thinned to adjust retention, but cannot be bent like metal. Adjust retention by modifying clasp arm length and thickness during design or by careful trimming after milling.

🎨 Color Selection

Q: How many color options are available?
A: Acetal Discs are available in 19 comprehensive colors:
• 16 Vita tooth shades: A1-A4, B1-B4, C1-C4, D2-D4
• BL (Bleach): For whitening cases
• Pink: Gingival color for denture bases/frameworks
• Clear: Transparent for minimal visibility
This complete range covers all clinical esthetic needs.

Q: When should I use Clear vs tooth-colored acetal?
A: Clear acetal: Use for maximum invisibility - ideal for orthodontic retainers or when you want clasps to "disappear."
Tooth-colored (Vita shades): Use when you want clasps to blend with tooth color - ideal for partial denture clasps engaging visible tooth surfaces
Pink: Use for gingival-colored components in denture frameworks

Q: Can I combine different colors in one partial denture?
A: Yes! You can use tooth-colored acetal for clasps and pink acetal for denture base components to create a completely esthetic, metal-free partial denture.

🏥 Clinical Applications

Q: Is acetal suitable for all partial denture cases?
A: Acetal is excellent for most cases, especially:
• Anterior partial dentures requiring esthetics
• Patients with metal allergies
• Temporary or interim partial dentures
• Cases prioritizing comfort and flexibility

However, for maximum retention in posterior areas or cases requiring precise clasp adjustability, traditional cast metal may be preferred.

Q: Can acetal be used for orthodontic retainers?
A: Yes! Clear or tooth-colored acetal is excellent for orthodontic retainers. The flexibility provides comfortable retention, and the material's strength ensures long-term durability.

Q: How long do acetal partial dentures last?
A: With proper care, acetal partial dentures can last 3-5 years or longer. The material maintains its flexibility and retention over time. Longevity depends on patient care, oral hygiene, and occlusal forces.

Q: Can patients with metal allergies use acetal partial dentures?
A: Yes! Acetal is completely metal-free and hypoallergenic, making it ideal for patients with allergies to nickel, chromium, cobalt, or other metals commonly used in cast partial dentures.

📦 Ordering & Packaging

Q: What thickness and color combinations are available?
A: Acetal Discs are available in:
• 19 color options: 16 Vita shades (A1-D4) + BL + Pink + Clear
• 7 thickness options: 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm
• 2 system options: 98mm Open System, 95mm Zirkonzahn

Q: How many clasps can I get from one disc?
A: Typical yield from a 20mm disc:
• Individual clasps: 20-30 clasps
• Partial denture frameworks: 3-5 frameworks
• Complete RPD (clasps + framework): 2-3 complete partial dentures

Actual numbers vary based on design complexity 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 flexibility and milling 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 clasp design or retention adjustment?
A: Our technical support team is here to help! We provide assistance with clasp design, milling parameters, retention adjustment techniques, and troubleshooting. 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 partial denture!