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Innovative Material that Breaks
the Stereotypes of Clear Aligners
This innovative Graphy's world-first directly 3D printable material for aligners breaks the preexisting concept of clear aligners and offers a significant advance toward digital dentistry. Tera Harz Clear is a material that can be optimized and customized on a patient-by-patient basis, and depending on the treatment plan, you can adjust the printing thickness as thin as 0.3mm or thicker, taking advantage of the benefits of 3D printing. The Shape Memory Effect allows for a flexible and comfortable fit during fitting, and effective control of tooth movement afterward. Compared to the thermoforming production of clear aligners, the production time of Tera Harz Clear aligners is relatively much shorter since manual operations such as thermoforming, cutting, finishing, etc., are not necessary, not to mention dental model printing.
Advantages of 3D Design
Possible to print out in the form designed by 3D Software as desired by the operator.
The world's first clear aligner material that can be printed with a 3D printer. The Shape Memory Aligner has no shape limitation for fabrication with an optimized 3D design.
Available to adjust and design the form and the thickness of each tooth to make the optimal orthodontic force according to the designated orthodontic plan.
On the other hand, the current clear aligner making method, such as vacuum forming, has no way to adjust the form and thickness of each tooth.
Graphy's direct 3d printed clear aligner can overcome the limitations of existing clear aligners by designing a combined and optimized form and thickness for making ideal and effective tooth movement and rotation.
Compared to the thermoforming clear aligner, which is difficult to contact with detailed and complex surfaces, the Shape Memory aligner is expected to have a better treatment effect due to the perfect contact surface between teeth and aligner, which is 3D printed and designed from 3D Scan data.
When conducting a block-out process, proceed with minimal effort in the 3D software.
In the conventional method, after model printing, block-out is performed in the cervical area and interproximal spaces to handle deformation and inconvenience during attachment and detachment.
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In our method, block-out is limited to excessive undercut areas in the interproximal spaces, performed selectively in 3D software.
The difference in the amount of block-out significantly impacts the corrective force due to the nature of the aligners' gripping and moving the teeth. In the conventional method, contact points between the aligner and teeth are primarily located on the upper and central parts of the crown, reducing grip in the cervical area where block-out was performed. This can lead to a risk of axial tilt of the teeth.
In contrast, the Graphy method allows the aligner to grip the entire crown down to the cervical edge, minimizing the risk of axial tilt while maximizing corrective force efficiency.
Conventional method
Graphy 3D Design Aligner
Proven clinical effectiveness in the thesis
The mechanical properties of the 3D printed Shape Memory Aligner® using the Tera Harz Clear showed no change in properties even one week after the patient wore it.
(quoted from: European Journal of Orthodontics, 2021, 1-5 / doi: 10.1093/ejo/cjab022 / University of Zurich / Dr. Nearchos Panayi)
Other Materials
Not even, stretches during thermoforming, resulting in a thin, floating shape that blocks out the undercuts
Tera Harz Clear
The thickness is even as designed, and the undercuts are fully joined thanks to Shape Memory
Conventional method
SMP(Shape Memory Polymer)
Minimize inconvenience of wearing and removing through shape memory function
The softening action of Shape Memory Aligner in warm water reduces patients’ inconvenience of wearing and removing even the minimized block out makes the patients uncomfortable.
​Enhancement of orthodontic force through shape memory function
​Minimized block out of direct aligner brings the maximum orthodontic force using shape memory function.
The recovering of orthodontic force through shape memory function
​When you feel the orthodontics force and elasticity of Shape Memory Aligner decrease, simply dipping it in warm water will make it recover the force and the original form.
Convenience of heat disinfection
The Shape Memory Aligner can be disinfected by heat, whereas the thermoformed materials get completely deformed in hot water. After a long use and subsequent contamination from FOB(foreign Object Debris), the Shape Memory Aligner can be disinfected by heat at a temperature under 100°C, where its clear state, its original shape, as well as its mechanical properties are recovered altogether.
Convenience of Storage
​Shape Memory Aligner can be stored in its own case. Its dedicated case has a mirror inside and is very small and compact so you can carry around to store your aligner when having a meal. After the meal, all you need to do is simply brush your teeth before wearing your aligner and warm your aligner in warm water to disinfect it and bring it back to its original shape.
Perfect Transparency
Graphy’s Tera Harz Clear maintains its perfect transparency unlike other materials that are easily contaminated after a week or so of using. It is hard to notice that you are wearing the Shape Memory Aligner. Whenever it’s losing its transparency, you can make it clear again just by brushing it with aligner bubble paste and brush