• OnePro ST Multilayer zirconia disc front view for dental CAD CAM restorations
  • OnePro ST Multilayer zirconia full arch restoration for dental CAD CAM lab applications

ST Multilayer Zirconia Disc – 98mm Gradient Dental CAD/CAM Zirconia

Gradient multilayer zirconia disc designed for dental laboratories that need balanced strength, natural shade transition, and efficient esthetic CAD/CAM production for everyday crown-and-bridge restorations.
$28.00
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  • 98mm open-system CAD/CAM compatibility
  • Up to 1200 MPa flexural strength
  • Approx. 43% gradient translucency
  • Multilayer shade transition from cervical to incisal
  • Lab support before ordering
  • CE / FDA documentation available upon request

OnePro Dental ST Multilayer Zirconia Disc is designed for professional dental CAD/CAM milling workflows where laboratories need a balance of strength, translucency, shade efficiency, and natural gradient esthetics.

Unlike ST White zirconia, ST Multilayer Zirconia comes with a built-in gradient shade transition, helping laboratories reduce manual staining steps and achieve a more natural appearance from cervical to incisal areas.

With flexural strength up to 1200 MPa and approximately 43% gradient translucency, ST Multilayer Zirconia is suitable for anterior crowns, posterior crowns, 3–4 unit bridges, full-contour zirconia restorations, and daily esthetic crown-and-bridge production.

Available in a 98mm open-system disc format, multiple thicknesses, and 20 popular shade options, it is a practical choice for laboratories that want reliable ST-series performance with improved esthetic efficiency.

CE and FDA-related documentation can be provided for review when applicable. Please contact us before ordering if your laboratory requires a specific certificate, batch, or technical documentation.
OnePro ST Multilayer zirconia block packaging with 98mm zirconia disc for dental CAD CAM labs

ST Multilayer Zirconia for Natural Gradient Restorations

ST Multilayer Zirconia is developed for dental laboratories that need a more natural shade transition than uniform pre-shaded zirconia, while still maintaining the balanced strength and production efficiency of the ST series.

The multilayer gradient structure helps restorations show a smoother transition from the cervical area to the incisal area, making it useful for esthetic crown-and-bridge cases where a more lifelike final result is preferred.

Compared with ST White zirconia, ST Multilayer can reduce manual shade-building work. Compared with ST Pre-shaded zirconia, it provides a more natural gradient appearance rather than a single uniform shade.

  • Multilayer zirconia for natural shade transition
  • Suitable for anterior and posterior crown-and-bridge restorations
  • Balanced strength and translucency for daily esthetic cases
  • Helps reduce manual staining work compared with white zirconia
  • Available in multiple shades and thicknesses

Multilayer Gradient Structure

Designed to support a smoother cervical-to-incisal transition for more natural-looking zirconia restorations.

ST Multilayer Zirconia is designed with a multilayer gradient structure that transitions from higher-chroma cervical areas to more translucent incisal areas. This helps dental laboratories create restorations with improved depth, shade transition, and natural appearance after sintering.

The gradient structure is especially useful for cases where a single uniform shade may look too flat, but the laboratory still needs a practical material for everyday production rather than a premium high-end esthetic zirconia.

  • Cervical Area

    Designed with stronger chroma expression to support a more natural cervical shade appearance.

  • Body Area

    Provides a balanced transition zone for crown body shade and overall restoration harmony.

  • Incisal Area

    Designed with improved translucency to help create a more lifelike incisal effect.

Available Shade Options

Choose from 20 multilayer shade options to support natural tooth shades, whitening cases, and efficient esthetic production.

Shade Group Available Shades Typical Use
A Series A1, A2, A3, A3.5, A4 Common natural tooth shades
B Series B1, B2, B3, B4 Brighter yellowish shade cases
C Series C1, C2, C3, C4 Grayish shade cases
D Series D2, D3, D4 Reddish-gray shade cases
BL Series BL1, BL2, BL3, BL4 Bleach and whitening cases

Total: 20 multilayer shade options, including 16 commonly used natural shades and 4 bleach shades. Additional surface stain or glaze can still be applied if final characterization or shade adjustment is required.

OnePro ST Multilayer zirconia full arch restoration for dental CAD CAM lab applications

Recommended Applications

OnePro Dental ST Multilayer Zirconia Discs are intended for professional dental laboratory milling of zirconia restorations that require balanced strength, natural shade transition, and efficient esthetic production.

The final material selection should be determined according to the restoration type, occlusal load, esthetic requirements, milling system, sintering protocol, applicable regulations, and the assessment of qualified dental professionals.

  • Anterior single crowns
  • Posterior single crowns
  • 3–4 unit anterior and posterior bridges
  • Full-contour zirconia restorations
  • Esthetic crown-and-bridge restorations
  • Cases requiring natural shade transition
  • Daily esthetic laboratory production
  • Standard shade cases where multilayer effect is preferred

Technical Specifications

Parameter Value
Material Zirconia
Series ST Multilayer
Material Type 3Y-TZP zirconia, multilayer gradient
Flexural Strength Up to 1200 MPa
Translucency Approx. 43%
Recommended Sintering Temperature 1530°C
Available Shades A1, A2, A3, A3.5, A4, B1, B2, B3, B4, C1, C2, C3, C4, D2, D3, D4, BL1, BL2, BL3, BL4
Density After Sintering Approx. 6.05 g/cm³
Linear Shrinkage Follow the batch-specific shrinkage value marked on the disc
Vickers Hardness Approx. 1200 HV
Disc Diameter 98mm
Available Thicknesses 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm
CAD/CAM Compatibility Open 98mm dental CAD/CAM systems

Quality & Regulatory Documentation

Quality-system, regulatory, and product documentation can be reviewed before ordering when required by the dental laboratory.

  • CE Documentation

    CE-related documentation is available for the applicable zirconia product family. Please contact us before ordering if your laboratory requires specific certificate information.

  • FDA-Related Documentation

    FDA-related product or establishment documentation can be provided for review when applicable. Documentation does not replace the laboratory’s own regulatory verification.

  • Material & Batch Support

    Batch information, product details, and available material documentation can be supplied upon request for laboratory records and customer documentation needs.

  • Lab Support Before Ordering

    Our team can help confirm product series, thickness, shade workflow, sintering requirements, and available documentation before you place an order.
ST Multilayer zirconia disc milled dental restoration design for CAD CAM workflow

Recommended ST Multilayer Zirconia Workflow

  1. Select the required shade and disc thickness according to the restoration design.
  2. Design the restoration in CAD software based on restoration type, connector design, and occlusal clearance.
  3. Confirm the correct cervical-to-incisal orientation before nesting.
  4. Position the cervical area toward the darker/chroma side and the incisal edge toward the more translucent side.
  5. Nest the restoration properly in the 98mm multilayer zirconia disc.
  6. Mill the restoration using a zirconia-compatible CAD/CAM milling system and validated milling parameters.
  7. Clean the milled restoration carefully and remove zirconia dust before sintering.
  8. Sinter according to the recommended furnace program and batch-specific instructions.
  9. Apply surface stain or glaze only if additional characterization or final shade adjustment is required.
  10. Finish, polish, and inspect the final restoration before delivery.

ST Multilayer vs. ST White vs. ST Pre-shaded Zirconia

Choose ST Multilayer for natural gradient esthetics. Choose ST Pre-shaded for standard shade efficiency. Choose ST White for full custom staining control.

Feature ST Multilayer Zirconia ST Pre-shaded Zirconia ST White Zirconia
Strength Up to 1200 MPa Up to 1200 MPa Up to 1200 MPa
Translucency Approx. 43% gradient Approx. 43% uniform Approx. 43% uniform
Shade Structure Multilayer gradient shade Uniform pre-shaded color White base
Shade Workflow Gradient shade integrated into the material Pre-shaded color integrated into the material Requires manual staining or coloring
Esthetic Effect More natural shade transition More efficient standard shade result More flexible custom shade control
Best For Esthetic anterior and crown-and-bridge cases High-volume standard shade cases Custom staining workflows
Staining Required Usually not required before sintering Usually not required before sintering Usually required for shade matching
Available Format 98mm open-system disc 98mm open-system disc 98mm open-system disc

What is ST Multilayer Zirconia best used for?

ST Multilayer Zirconia is best used for esthetic crown-and-bridge restorations where laboratories need balanced strength, natural shade transition, and efficient shade workflow. It is suitable for anterior crowns, posterior crowns, 3–4 unit bridges, and daily esthetic zirconia cases.

What is the difference between ST Multilayer and ST Pre-shaded Zirconia?

ST Pre-shaded Zirconia has a uniform pre-integrated shade, while ST Multilayer Zirconia has a gradient shade transition from cervical to incisal areas. ST Multilayer is usually preferred when a more natural shade transition is required.

What is the difference between ST Multilayer and ST White Zirconia?

ST White Zirconia is a white base designed for manual staining or coloring workflows. ST Multilayer Zirconia already includes a built-in gradient shade structure, helping reduce manual shade-building work and improve esthetic efficiency.

How many shade options are available?

ST Multilayer Zirconia is available in 20 shade options, including A1, A2, A3, A3.5, A4, B1, B2, B3, B4, C1, C2, C3, C4, D2, D3, D4, BL1, BL2, BL3, and BL4.

Do I need to stain ST Multilayer Zirconia before sintering?

In most standard shade cases, additional pre-sintering staining is not required because the gradient shade is already integrated into the material. However, surface stain or glaze can still be applied after sintering when additional characterization is needed.

Can I still apply surface stains or glaze?

Yes. Surface stains and glaze can be applied according to the laboratory workflow if final characterization, shade adjustment, or surface finishing is required.

How should I position the restoration in the multilayer disc?

The restoration should be nested according to the correct cervical-to-incisal direction. The cervical area should be positioned toward the higher-chroma side, and the incisal area should be positioned toward the more translucent side. Incorrect orientation may affect the final shade transition.

What is the flexural strength of ST Multilayer Zirconia?

ST Multilayer Zirconia provides flexural strength up to 1200 MPa, making it suitable for a wide range of crown-and-bridge restorations when used according to proper design, milling, and sintering protocols.

Which CAD/CAM systems are compatible?

This product is supplied in a 98mm open-system disc format and is compatible with many open dental CAD/CAM milling systems that support 98mm zirconia discs. Please confirm your machine holder and milling strategy before ordering.

Can you provide CE and FDA-related documentation?

Yes. CE and FDA-related documentation can be provided for review when applicable. Please contact us before ordering if your laboratory requires a specific certificate, batch, or regulatory documentation.

Explore More Zirconia Options

Compare different zirconia series for strength, translucency, shade workflow, and restoration indications.

  • ST White Zirconia

    Balanced-strength white zirconia for laboratories that prefer custom staining and flexible shade control.

  • ST Pre-shaded Zirconia

    Balanced-strength pre-shaded zirconia for standard shade cases, efficient production, and predictable color results.

  • SHT Multilayer Zirconia

    Higher-translucency multilayer zirconia for improved esthetics in anterior and posterior restorations.

  • 3D Pro Multilayer Zirconia

    Premium gradient multilayer zirconia for natural shade transition and high-end esthetic restorations.

Need Help Choosing the Right Zirconia Disc?

Tell us your milling machine, restoration type, required shade, thickness, sintering workflow, and case requirements.

Our team will help you confirm the suitable zirconia series, disc thickness, shade option, and available technical documents before ordering.

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