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The Dental Resins of FormLabs for their Form 2, Form 3 and Form 3L are specialized materials for the dental field, where the use of this type of technology is increasingly present. Thanks to dental resins (biocompatible) they allow to realize models of crowns and bridges, surgical guides, splints and retainers with an incredible accuracy, with a maximum deviation of ± 100 microns, and with very low material costs for each element (1.4 - 3.3 €), which amortizes the use of the printer with any of the dental resins in a few months.
The Dental Resins offered by FormLabs are:
Dental Model Resin (Crowns and bridges model)
Dental SG Resin (Biocompatible Class I)
Dental LT Clear Resin (High breaking strength)
Dental Model Resin is a high performance material for crowns and dental bridge models.
With the print configuration of 25 microns (layer height) clear margins are achieved, and, precise and consistent contacts with an accuracy of ± 35 microns in 80% of the model. In the rest of the model an accuracy of ± 100 microns is achieved in more than 90% of the surfaces. These values of such low tolerances make it possible to insert the extractable matrices (teeth) with a fitted adjustment.
In addition, the Model Dental Resin has a smooth finish and a color similar to plaster, which facilitates the clear visualization of the model during production. Thanks to all the above and the low cost (€ 4.7 for each matrix), this type of models compete directly with those enhanced in clay.
This type of resin is dedicated to making aid elements for surgeries, with the best possible clinical result. Dental SG Resin is a Class I biocompatible material (EN-ISO 10993-1:2009/AC:2010, EN-ISO 20795-1:2013, EN-ISO 7405:2009/A1:2013) that combined with an autoclave of sterilization leads to digitally designed dental guides of low cost (1.8 - 2.8 € per guide).
FormLabs has conducted a study examining 84 printed guides with the Dental SG Resin using a 3D orthodontic scanner and comparing the .STL files. The final result was that more than 93% of the surfaces of the models created with this resin had a precision of ± 100 microns, thus providing a fitted fit, more than sufficient, for dental surgical applications.
Dental LT Resin offers a high resistance to fracture, wear and biocompatibility Class IIa (EN-ISO 10993-1:2009/AC:2010 EN-ISO, 10993-3:2009, EN-ISO 10993-5:2009, EN-ISO 10993-11, EN-ISO 7405:2009/A1:2013). To ensure the durability and resistance necessary to produce final elements, the Dental Resin LT complies with the mechanical properties stipulated in the EN-ISO 20795-1:2013 standard. This resin is ideal for direct printing of splints, retainers and other orthodontic devices with a translucent finish.
To achieve a finish with an optimal transparency, only a light polish is needed.
|Impact strength (KJ/m2)||3.3|
|Elongation at break (%)||25|
|Tensile strength (MPa)||61|
|Tensile modulus (MPa)||2700|
|Flexural strength (MPa)||33.9|
|Flexural modulus (MPa)||2500|
|Softening temperature (ºC)||56|
|Medical use||Medical use|