ST zirconia and multilayer zirconia can both support efficient CAD/CAM production, but they are usually selected for different workflow priorities. The right option depends on the restoration, aesthetic objective, shade strategy and the laboratory’s preferred finishing process. Product names alone are not enough; the current data sheet and indication guide should always be reviewed.
What laboratories expect from ST zirconia
ST zirconia is commonly positioned as a versatile material for routine laboratory production. A laboratory may consider it when it wants a straightforward disc format, practical shade choices and a predictable workflow for everyday cases. The exact indications, technical values and processing instructions must be confirmed for the specific product.
For many laboratories, the main benefit is operational simplicity. Technicians can organize nesting, shade inventory and processing around a familiar material category. This may be useful when the laboratory handles a broad range of standard restorations and needs a dependable production option.
Questions to ask before choosing ST zirconia
- Which indications are supported by the current product data?
- Which shades and thicknesses are available?
- Is the disc compatible with the laboratory’s open milling system?
- What processing and application guidance is available?
How multilayer zirconia differs
Multilayer zirconia is designed to provide a transition through the disc. Depending on the product design, that transition may support a more natural visual result and reduce some manual characterization steps. The outcome still depends on correct nesting, restoration position, milling, processing and finishing.
The nesting position is especially important. Moving a restoration within the disc can change how the shade transition appears in the final result. Laboratories should establish a repeatable nesting approach and evaluate sample cases before using a new material for regular production.
Aesthetics versus inventory simplicity
Multilayer materials may be attractive when the laboratory prioritizes a built-in visual transition. ST zirconia may be preferred when the team wants a simpler shade and production routine. Neither category is automatically better for every case. The practical decision should consider indication coverage, technician experience, finishing time and inventory planning.
Use a controlled comparison
When comparing two zirconia dental discs, keep the test conditions consistent. Use comparable restoration designs, the same milling equipment and a documented process. Review edge quality, fit, shade result and finishing response. A controlled internal test gives the laboratory more useful information than a comparison based only on product descriptions.
Ask the supplier for current technical documents and confirm any unverified parameter before production. The UPGAZE Technical Support page provides access to product guidance, while the Download Center explains how to request current catalogs and technical data sheets.
Which option should you request?
Choose UPGAZE ST Zirconia Blocks when the goal is a practical daily laboratory workflow and the confirmed indications match the case. Consider UPGAZE Multilayer Zirconia Blocks when a built-in transition supports the desired aesthetic workflow. Explore the complete UPGAZE product directory for additional dental CAD/CAM materials.
Plan the evaluation around real production
A small internal comparison should reflect the cases the laboratory actually produces. Select representative crown or bridge designs, involve the technicians who will use the material and document the results. A material that performs well in a demonstration may still require changes to nesting, finishing or inventory routines.
Review the commercial workflow at the same time. Confirm how shades and thicknesses are identified, how technical updates are communicated and which documents are supplied with repeat orders. This gives the laboratory and distributor a clearer picture of long-term usability than a single test restoration.
Compare materials for your laboratory
Tell us the restoration type, milling system, shade and thickness requirements. We will share the relevant product information for evaluation.
