Acetal Discs 12–25mm for Dental CAD/CAM

Dental acetal is a polyoxymethylene-based thermoplastic material used for milling selected removable prosthetic components. It combines flexibility, mechanical stability, low moisture absorption, and multiple color options, making it suitable for tooth-colored clasps, removable partial denture frameworks, and other metal-free dental applications.

Acetal Discs can be used for tooth-colored clasps, esthetic anterior clasps, removable partial denture frameworks, gingival-colored framework components, temporary removable appliances, and other selected prosthetic components. The final application should always be determined according to the restoration design, required retention, material thickness, and professional evaluation.

Acetal is generally more flexible and fatigue-resistant than conventional PMMA, making it more suitable for clasps and removable framework components that require repeated insertion and removal.

PMMA is more commonly used for temporary crowns, bridges, denture bases, try-ins, splints, and diagnostic restorations. Acetal and PMMA are therefore designed for different dental laboratory applications rather than being direct substitutes for each other.

Both acetal and PEEK are metal-free thermoplastic materials, but they have different mechanical characteristics and recommended applications.

Acetal is commonly selected for flexible clasps, removable partial denture frameworks, and components that require a degree of elasticity. PEEK is typically used for lightweight frameworks, implant-supported structures, and selected long-term prosthetic applications where greater rigidity and structural stability may be required.

The appropriate material should be selected according to the restoration design and mechanical requirements.

Choose the color according to the location and esthetic requirement of the prosthetic component:

• Vita tooth shades are suitable for tooth-colored clasps and visible components close to natural teeth.
• BL is suitable for bleached or high-value tooth shades.
• Pink is suitable for gingival-colored removable framework components.
• Clear is suitable for selected applications where reduced visual visibility is preferred.

Final color selection should be based on the surrounding teeth, gingival tissue, restoration design, and desired esthetic result.

OnePro Dental Acetal Discs are available in 98mm Open System and 95mm Zirkonzahn formats.

Before ordering, confirm your milling machine’s disc diameter, holder design, and required thickness. If you are uncertain about compatibility, send us your milling machine brand and model for confirmation.

No. Acetal is a fully polymerized thermoplastic material and does not require sintering or crystallization after milling.

After milling, the restoration is removed from the disc, finished, polished, cleaned, and checked for fit, retention, margins, and surface quality.

Minor finishing and polishing adjustments may be possible, but acetal does not respond to chairside adjustment in the same way as a conventional metal clasp.

Retention should primarily be controlled through CAD design, clasp dimensions, undercut selection, material thickness, and milling accuracy. Excessive bending, heating, or aggressive adjustment may damage the component.