Free shipping
from 300 € / net
The device enables the photopolymerisation of all light-curing materials in the wavelengt
Light curing unit for the polymerisation of 3D-printed components in just 6 - 10 minutes. The powerful LEDs used in
The role of light curing (post-polymerisation) in dental 3D printing
Post-polymerisation determines the quality of your 3D-printed objects. Only this process gives the printed objects (e.g. denture bases, splints) their final properties - from mechanical strength to biocompatibility. Our materials scientists, dental technologists and product experts work closely together to develop harmonised solutions for the 3D printing workflow in the dental laboratory or dental practice, including ouroptiprint-premium resins. Light curing always plays an important role as part of post-processing in 3D printing.
The basics of polymerisation
The principle is simple and effective: liquid monomers are cross-linked into solid polymers through targeted exposure to light. We rely on a combination of UVA and UVB radiation for this. While UVA penetrates deep into the material, UVB ensures rapid surface hardening. Our three coordinated devices utilise this technology for optimum results.
Our light curing units at a glance
RapidShape RS cure combines powerful LED technology with heating and vacuum for particularly fast results. The homogeneous 360-degree curing in just 6 to 10 minutes makes the device particularly efficient - ideal for complex structures in the UV-A and UV-B range. Otoflash G171 impresses with a broad wavelength spectrum of 280 - 580 nm. This versatility not only enables effective UV curing, but also takes into account different material concepts and pigmentations. The special flash technology ensures particularly thorough curing. The Ackuretta UV box offers maximum flexibility with wavelengths of 365, 385 and 405 nm. Two operating modes - flash or uniform radiation - enable optimum adaptation to different material requirements with uniform curing from all sides.
FAQs: Frequently asked questions about light curing (post-processing)
Why is light curing so important in dental 3D printing?
Light curing is much more than just a post-processing step. During 3D printing, only the initial curing of the resins takes place. Only post-curing leads to complete polymerisation and thus to optimum mechanical properties, maximum biocompatibility and long-term dimensional stability. In dental applications, this work step is particularly important for permanently precise results and safety.
What exactly happens during polymerisation?
During photopolymerisation, light triggers a chemical reaction. The photoinitiators contained in the material absorb the light and form free radicals, which start the cross-linking of the monomers to form polymers. Various factors influence this process: the light intensity determines the speed of the reaction, while the wavelength is decisive for the activation of the photoinitiators. Temperature also plays an important role - moderate heating can increase the degree of polymerisation.
Discover our optiprint premium resins
What role do UVA and UVB radiation play?
The different types of UV radiation have different effects: UVB (280 - 315 nm) is more energetic and ensures rapid surface curing. UVA (315 - 380 nm) penetrates deeper into the material and ensures thorough curing. Our devices utilise both types of radiation specifically to achieve optimum results. The Otoflash G171 even covers an extended wavelength range up to 580 nm, which is particularly advantageous for pigmented materials.
How is optimum curing achieved?
The quality of curing depends on several factors:
- Correct cleaning of the object from non-polymerised resin
- Suitable wavelengths for the respective material
- Optimised curing time (usually 6 to 10 minutes)
- Even curing from all sides
- Control of the ambient temperature
Our devices are specially designed to meet these requirements and offer validated programmes for all optiprint resins.
What needs to be considered during handling?
Proper handling is crucial for optimum results:
- Thorough cleaning of the objects before post-curing
- Correct positioning in the device for even curing
- Compliance with the material-specific exposure times
- Regular maintenance of the light sources
- Observing the safety instructions when handling UV radiation
Our detailed application recommendations and our technical support will help you.
