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A Fast and Efficient Method of Wax-up Casting

HeyGears’ 3D printed wax-up method for investment casting of removeable partial dentures (RPDs) has significant benefits compared to the traditional methods of fabricating RPDs.

Comparison of Wax-up Methods

Traditional Wax-up Method

  • High Labor Cost (Manual Production)

    High Labor Cost (Manual Production)

  • Long Production Time (80+ minutes)

    Long Production Time (80+ minutes)

  • High Degree of Technical Difficulty (3-5 Years Design Experience)

    High Degree of Technical Difficulty

  • On-site Management of Entire Process

    On-site Management of Entire Process

  • No Software to Complete Production

    No Software to Complete Production

  • Low Degree of Accuracy & Precision

    Low Degree of Accuracy & Precision

Traditional Wax-up Method
HeyGears Wax-up Method HeyGears Wax-up Method

  • Low Labor Cost (Automated Production)

    Low Labor Cost (Automated Production)

  • Short Production Time (35 minutes)

    Short Production Time (35 minutes)

  • Low Degree of Technical Difficulty (1 Year of Design Experience)

    Low Degree of Technical Difficulty

  • HeyGears Design Center Manages Production Remotely

    HeyGears Design Center Manages Production Remotely

  • User-friendly Software

    User-friendly Software

  • High Quality 3D Printed Wax-up

    High Quality 3D Printed Wax-up

HeyGears Wax-up Method
vs

Cast UV 3.0

Key Features

Cast UV 3.0 is developed for the production of high-precision dental casts. Its low viscosity and optimized cure depth help reduce print time, material consumption, and wash time. Printing results are precise and without any misshapes. The burnout process leaves no residue in the mold, which facilitates the metal casting of RPD brackets, post and core, and crowns. It also works for crowns with zirconia, veneers, and ceramic inlays.

· Clean Burn-out

· Dimensional Stability

· Vivid Detail Restoration

· High Precision Casting

Learn More

Applications

Applications compatible with Cast UV 3.0 come in many shapes and sizes, such as removable or fixed restorations. The goal of Cast UV 3.0 is to create an outline for high-precision casting for multiple applications in dentistry.

  • Removable Partial Dentures

    Removable Partial Dentures

    (Metal Casting)

  • Crown

    Crown

    (Metal/Ceramic Casting)

  • Inlay

    Inlay

    (Ceramic Casting)

  • Veneer

    Veneer

    (Ceramic Casting)

Removable Partial Dentures

Removable Partial Dentures

(Metal Casting)

Crown

Crown

(Metal/Ceramic Casting)

Inlay

Inlay

(Ceramic Casting)

Veneer

Veneer

(Ceramic Casting)

Specifications

PropertiesUnitsStandardResult
Flexural StrengthMPaASTM D79072.3-84.5
Sintering Temperature℃/900-950
Sintering TimeHours/1-1.5
Denture Thicknessmm/≥0.35
Storage TimeHours/<10
Ash Value//<0.03

Compatible 3D Printers

How to Ensure Stable Printing Results

3D printed wax-up RPD brackets at times contract and deform during the post-curing process. Specific areas affected are the upper jaw connector, lower lingual plate, and lingual bar.

A support bar of at least 2 mm of diameter must be added to the wax-up RPD in order to control the structure from deforming during production and post-curing.

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Key areas such as the clasp and occlusal rest need 2 to 3 additional filaments to ensure sufficient support.

How to Adjust Design Parameters for an Accurate Bracket

Design parameters are necessary to ensure that each bracket you 3D print is accurate and precise to the needs of your patients. It also helps reduce the potential risk of error by giving your bracket room for adjustment during production.

Make a specific undercut angle for a better placement of the bracket.

Add a buffer space for the occlusal rest, proximal plate, and embrasure area to reduce grinding pressure from the steel support.

Set a liner space so the bracket can be tightened appropriately.

Adjust the shapes height according to the support parameter for a clear pattern.

  • Make a specific undercut angle for a better placement of the bracket.

  • Add a buffer space for the occlusal rest, proximal plate, and embrasure area to reduce grinding pressure from the steel support.

  • Set a liner space so the bracket can be tightened appropriately.

  • Adjust the shapes height according to the support parameter for a clear pattern.

How Cast UV 3.0 Prevents Deformation of Your Wax-up RPD

Cast UV 3.0 for wax-up RPD brackets do not require refractory impressions and differ from traditional materials used. It has a different heating curve and water/powder ratio. Cast UV 3.0 is incredibly accurate and maintains a low temperature during casting to prevent the model from rapidly expanding and potentially cracking.

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