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Acetal Partial

 

Zirlux Acetal is a milled resin that provides a superior metal-free alternative for removable applications.

This 99.9% pure polyoxymethylene (POM) is a highly crystalline thermoplastic with properties that closely mirror natural teeth.

The material's unique characteristic of being flexible when thin but rigid when thick makes it ideal for tooth-retained removable appliances with optimized clasp design and structural support.

Think of Acetal as a much-improved PMMA—it's both stronger and more flexible, with virtually zero water absorption that prevents stains and odors while delivering long-lasting performance.

The material's ability to engage naturally undercuts provides maximum retention and patient comfort, while its natural tooth-colored appearance eliminates visible metal concerns, particularly in anterior applications.

 

Acetal Partial
Acetal Partial Overview

Clinical Benefits of Acetal Partial Dentures

  • Superior Manufacturing Precision – Milled fabrication eliminates injection heating/cooling, avoiding expansion or shrinkage for exceptional accuracy
  • Exceptional Material Properties – 99.9% pure, highly crystalline thermoplastic with 90 MPa strength and superior fatigue resistance
  • Adaptive Flexibility – Material is flexible when thin for comfortable clasps, but rigid when thick for structural support
  • Optimal Moisture Resistance – Virtually zero water absorption prevents staining, odor development, and dimensional changes
  • No Thermal Conductivity – Eliminates temperature sensitivity for enhanced patient comfort during eating and drinking
  • Strategic Clasp Placement – Clasps engage teeth instead of tissue, reducing tissue irritation and improving retention
  • Excellent Esthetics – Clasps available in most shades for seamless integration
  • Metal-Free Solution – Perfect for patients with metal allergies or sensitivities to traditional frameworks
  • Enhanced Patient Comfort – Flexible clasp engagement reduces pressure on abutment teeth while maintaining reliable retention
  • Biocompatible Performance – Excellent tissue compatibility with minimal inflammatory response
  • Easy Maintenance – Non-porous surface resists plaque accumulation and simplifies patient hygiene protocols
  • Customizable Options – Available in multiple disc sizes (98.5mm) and thicknesses (15mm, 20mm, 25mm) for optimal design flexibility

These benefits make acetal partials ideal for patients requiring precision, esthetics, and reliable metal-free performance.

Product Specifications

Partial Denture Black
Description Acetal resin partials are very biocompatible, making it an excellent choice for patients with sensitivities to metal or acrylic.
Tooth Shades A1, A2, A3, A3.5, B1, B2, C1, C2, D2, D3, BL2, BL3
Patient Visits (est.) 3
Applications Partial tooth replacement
Materials • Acetal resin (milled)
• Denture teeth
• Clasps (multiple options available)
Benefits • Alternative for patients with allergies to other materials
• Durable
Records • PVS or IOS impression
• Bite
• Opposing
• Patient photographs
Process • Records
• Wax try-in (optional)
• Seat
Seating Adjustments should be none to minimal.
Warranty 1 year
Insurance Codes • D5213 Maxillary partial denture - cast metal framework with resin denture bases (including any conventional clasps, rests and teeth)
• D5214 Mandibular partial denture - cast metal framework with resin denture bases (including any conventional clasps, rests and teeth)

Video Resources

Partial Denture Offerings - Product Comparison

Wear Esthetics Strength Price Lab Days Materials Benefits
SLM Cobalt Chrome Partial ★★★★ ★★★ ★★★★ $466.00 12 • SLM frame (Cobalt Chrome)
• Acrylic
• Denture teeth
• Clasps (multiple 
options available)
• High strength
• Durable
SLM Titanium Partial ★★★★ ★★★ ★★★★ $466.00 12 • SLM frame (Titanium)
• Acrylic
• Denture teeth
• Clasps (multiple 
options available)
• High strength
• Durable
Acetal Partial ★★★★ ★★★★★ ★★★ $461.00 12 • Acetal resin (milled)
• Denture teeth
• Clasps (multiple 
options available)
• Alternative for patients with 
allergies to other materials
• Durable 
Thermoplastic Partial ★★★ ★★★★★ ★★★★★ $308.00 8 • Flexible thermoplastic
• Denture teeth
• Clasps (multiple 
options available)
• Flexible
• Added comfort
Thermoplastic Partial Hybrid ★★★ ★★★★ ★★★★★ $413.00 12 • SLM frame (printed metal)
• Flexible thermoplastic
• Denture teeth
• Clasps (multiple 
options available)
• Flexible
• Added comfort
• Additional strength
All Acrylic Partial (Flipper) ★★ ★★★ ★★ $152.00 5 • Acrylic
• Denture teeth
• Clasps (wrought wire or esthetic)
• Lightweight
• Economical

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