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Tera Harz Clear

Shape Memory Aligner

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.

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Advantages of 3D Design

Conventional method

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Graphy 3D Design Aligner

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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

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Not even, stretches during thermoforming, resulting in a thin, floating shape that blocks out the undercuts

Tera Harz Clear

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The thickness is even as designed, and the undercuts are fully joined thanks to Shape Memory

Conventional method

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SMP(Shape Memory Polymer)

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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

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