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Success Story with Ewert Zahntechnik and 2onelab

Success Story with Ewert Zahntechnik

Digital Hybrid Manufacturing: Precision & Efficiency with 2onelab & CIMSystem

Discover how Ewert Zahntechnik achieves a precise workflow for high-quality telescopic restorations using the digital hybrid solution from 2oneLab and CIMSystem. This solution offers flexibility, precision, and economic advantages compared to conventional or purely additive methods.

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Initial Situation

Ewert Zahntechnik, based in Soest, Germany, is an innovative dental laboratory specializing in high-end prosthetic solutions. To meet the growing demands for precision, repeatability, and cost-efficiency, the company decided to implement a hybrid manufacturing workflow—comprising the 2Create metal 3D printing system from 2onelab and the Make&Mill CAD/CAM solution from CIMSystem.

Objective

Ewert Zahntechnik aimed to make the production of secondary structures for telescopic dental prostheses more efficient. This type of dental restoration requires the highest level of precision, complex geometries, and seamless integration into existing digital workflows

Hybrid Workflow Solution

By combining the 2Create metal 3D printer  and Make&Mill CAD/CAM software, a fully integrated hybrid workflow (3D printing and miling) could be implemented.

2Create Metal 3D Printers
2Create Metal 3D Printers
Make and Mill software
Make&Mill

Hybrid Workflow

Hybrid Workflow graphic - 2onelab
Hybrid Workflow - 2onelab

Further Elements for the Hybrid Workflow by 2onelab

For a complete digital dental workflow, Ewert Zahntechnik also implemented additional components from the 2oneLab ecosystem to streamline the production process and ensure maximum efficiency, repeatability, and precision:

Hybrid Workflow - Step by Step

1. Scan

Digitalization of the Patient Model – Foundation for CAD Design

– At the beginning, the patient’s physical model – such as a plaster model or an intraoral scan – is digitized using a 3D scanner. This step is essential for capturing the exact geometry of the oral situation and transferring it into the digital workflow.

– The resulting digital model (usually in STL format) then serves as the basis for the CAD design of the dental restoration.

Digitalization of the patient model
Digitalization of the patient model

2. Design

Digital Design for Precise Hybrid Manufacturing – CAD + Make&Mill Software

– The telescope prostheses are initially digitally designed using a CAD system such as exocad or SilaParts. (Picture 1)

– The completed design is then exported in STL format and imported into CIMSystem’s Make&Mill software.

Special support bridges are then designed on the component. These ensure precise positioning on the milling machine’s fixture and enable reproducible alignment for the subsequent hybrid manufacturing process. (Picture 2)

CAD-Exocad graphic
CAD design of the telescopic work followed by the import (STL) into Make&Mill
Make and Mill software
Make&Mill

3. Preparation

Preparation for 3D Printing – 2Build CAM

After designing in Make&Mill, the file is transferred to the 2Build CAM software, where the build job is created. The model is sliced, and the necessary machine parameters and G-code are generated.

– The completed build job is then sent to the 2Create metal 3D printer, where the additive manufacturing process (selective laser melting) begins.

Creation of the 3D print job in the 2Build CAM software.
Creation of the 3D print job in the 2Build CAM software.

4. Production / Metal 3D Printing

Printing the Part with 2Create

– The build job is constructed layer by layer in the 2Create metal 3D printer, resulting in the metallic structure of the part with high dimensional accuracy and fine detail.

Additive manufacturing process (3D printing): Powder Bed Fusion (PBF)
Additive manufacturing process (3D printing): Powder Bed Fusion (PBF)

+ Post-Processing

Heat Treatment

After printing, the part undergoes heat treatment to eliminate internal stresses (residual stresses). This step is essential to prevent material warping and deformation during subsequent processing.

Heat treatment to relieve internal residual stresses in the component
Heat treatment to relieve internal residual stresses in the component

5. Milling Process

Precise Milling of the Part in the Make&Mill Fixture

– The component is separated from the build plate after the heat treatment and clamped into the specially designed Make&Mill fixture for the milling process. This holder is then inserted into the milling machine (e.g., T5 from Siladent). Thanks to the pre-calibrated zero-point system, the defined surfaces and cavities can be milled with the highest precision.

– This results in a precisely fitting dental restoration that meets the highest functional and aesthetic standards.
 

Precise milling of the component in the Make&Mill fixture
Precise milling of the component in the Make&Mill fixture
3D-printed telescope components with re-milled cavities
3D-printed telescope components with re-milled cavities

Result:

  • Maximum precision through the combination of additive and subtractive manufacturing
  • Time savings in the production of complex secondary structures
  • Material efficiency by building up only where necessary
  • Optimal integration into existing digital workflows
Ewert Zahntechnik finish: 3D-printed telescope components with re-milled cavities
Ewert Zahntechnik finish: 3D-printed telescope components with re-milled cavities

Conclusion

The hybrid manufacturing approach with 2Create and Make&Mill enables Ewert Zahntechnik to produce high-quality telescopic restorations at an industrial standard. The system offers not only flexibility and precision but also a sustainable and economical advantage over purely conventional or purely additive methods.

We sincerely thank Ewert Zahntechnik for the successful collaboration and their trust in our hybrid manufacturing solution. Their commitment to innovation and quality sets a strong example in modern dental technology.

We look forward continuing our partnership. 🚀

High-Performance Metal 3D Printers

The 2Create series – including 2Create/2Create Plus and 2Create Desktop – are versatile metal 3D printing solutions tailored for various industries.

Success Story with Creacam

Discover how Creacam has redefined efficiency in dental production with our 2Create metal 3D printer, while cutting costs and ensuring consistency.

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Markus Wolf
Passionate about 3D printing, while being CTO and Co-Founder of 2onelab.
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Bild von Markus Wolf
Markus Wolf
Passionate about 3D printing, while being CTO and Co-Founder of 2onelab.
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