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Interim dentures in 3D printing
- 8 September 2025
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Pia Kulas
Interim dentures in 3D printing
Interim prostheses must be quickly available, stable and accurately fitting - requirements that traditional analogue processes often only fulfil under great time pressure and at great expense. Jannick Bade, MDT, shows how 3D printing with the biocompatible resin optiprint interim from dentona offers a reliable and efficient solution in his day-to-day laboratory work.
Why 3D printing for interim dentures?
Interim prostheses have the unpleasant characteristic of always being needed when time and resources are scarce in the laboratory.
The digital workflow with CAD design and 3D printing offers significant advantages here:
- Fast availability, even for short-term cases
- Reproducible results with high process reliability
- Low post-processing effort
- Precise reproduction of even fine structures
"For us, 3D printing of interim prostheses is now an integral part of the process. Fast, precise, easy to plan," says Jannick Bade.
Material in focus: optiprint interim
Choosing the right 3D printing resin is crucial. After testing various products, Jannick Bade decided in favour of optiprint interim. The resin is suitable for interim denture bases and components and is approved for continuous use in the mouth for up to 30 days.
The most important advantages from a practical perspective:
- High fracture and flexural strength even with reduced wall thickness
- Very good fit straight from the printer
- Consistent quality without time-consuming reworking
- Pleasantly low odour in the laboratory
- Quick to polish and easy to process
- Compatible with the vivapink powder-liquid system for repairs and the cementation of denture teeth
Due to the low shrinkage and high dimensional stability, process reliability is high - a decisive factor in everyday laboratory work.
Workflow from the practice
In Jannick Bade's laboratory, design is CAD-based and 3D printing is carried out on an ASIGA Max. The parameters are consistently matched to the optiprint 3D printing resins by dentona, the setup is well-rehearsed and the processes are clearly defined. Post-processing of the printed prostheses is kept to a minimum: The surface is smooth, the fit is precise and adjustments are rarely necessary.
Interim conclusion: digital beats analogue
"Interim prostheses can be produced much more efficiently digitally than analogue," says Jannick Bade.
The laboratory saves time, can react at short notice and benefits from the reproducibility of follow-up work. Of course, not every restoration is a candidate for 3D printing - but the advantages often outweigh the disadvantages, especially for temporary solutions: Efficiency, stability and safety. For Jannick Bade, one thing is certain: optiprint interim is the best way for him to fulfil the requirements of his laboratory and his patients - reliably, reproducibly and with little effort.
Conclusion
The use of 3D printing for interim prostheses shows how much digital technologies can simplify everyday laboratory work. With the right material, temporary restorations can be realised efficiently, stably and aesthetically.
👉 The detailed PDF of the case report by MDT Jannick Bade can be downloaded here.
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