Removables
Acetal Partial Frameworks
Acetal partials offer a flexible yet durable removable solution designed to blend naturally with the patient’s existing dentition. Made from strong, thermoplastic acetal resin, these partials resist staining, retain their shape over time, and eliminate the visibility of metal clasping in the smile zone.
They’re ideal for patients who value comfort, esthetics, and a more natural looking removable option.
Material + Design Options
- Multiple acetal shade options including tooth colored, tissue colored, and clear
- Esthetic clasping options
- Hybrid designs combining acrylic and acetal elements
- Custom shaping for improved phonetics and comfort
When It Makes Sense
Metal-Free Esthetics
An esthetic solution without visible metal components.
Hidden Clasping
Ideal when metal clasps would show in the smile line.
Flexible Comfort
Suited for patients who prioritize comfort and flexibility.
Long-Term Interim Use
Appropriate for extended interim or hybrid removable treatment.
Conservative Treatment
Supports minimal invasiveness and conservative tooth preparation.
Younger or Transitional Patients
Well suited for patients transitioning into long-term prosthetics.
High Esthetic Demands
Ideal when visible clasping areas make appearance a priority.
Why Derby
Designed to blend — not stand out
We select acetal shades that mimic natural tooth structure for a more seamless appearance. We also offer clear and pink options when requested.
Consistency meets comfort
The material flexes slightly under function but maintains its shape — offering a secure and comfortable fit.
Digital or traditional workflows
Whether you're submitting scans or impressions, our team builds a design that aligns with functional and esthetic goals.
Clasping options that look natural
Clasping options include tooth colored, tissue colored, or clear elements, allowing retention without visible metal.
A team who evaluates design, not just records
Undercuts, path of insertion, tissue dynamics, and smile esthetics all factor into the final prosthetic.
Turnaround
Standard turnaround: 7 days in lab
Wax try in (if requested): additional 2 days
Production Phases
Step 1
Records + Case Submission
Step 2
Design + Clasp Planning
Step 3
Framework Fabrication
Step 4
Try In (Case Dependent)
Step 5
Final Processing
Step 6
Delivery + Adjustments
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FAQ
Does the material stain?
Acetal resin is highly stain resistant compared to traditional acrylic.
Are these adjustable?
Minor adjustments are possible, but significant reshaping is limited compared to metal frameworks.
Is this a long term solution?
Yes — while not as rigid as metal, acetal partials offer durability and long term wear.
Can this be repaired?
The acrylic components can be repaired or adjusted, but the acetal framework itself cannot be modified once milled. Because the file is stored digitally, we can remill the exact same design if a full replacement is needed.
What’s the difference between Y3, Y4, and Y5?
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Related Products
Flexible Partials
A metal-free partial that feels natural, looks clean, and keeps patients wearing it.
Metal Partial Frameworks
Strength, precision, and long-term comfort designed for everyday reliability.
