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Custom Tray dental resin - FormLabs

Ref.: RS-F2-CTBL-01

249.00 €

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Approximate delivery date: Wednesday 27 November - Monday 2 December

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FormLabs Dental Resins are specialized materials for the dental field, where the use of this type of technology is increasingly present. The dental resins allow the production of models of crowns and bridges, surgical guides, splints and retainers with incredible accuracy, with a maximum deviation of ±100 microns, and with very low material costs per element (1.4 - 3.3 €), which amortizes the use of the printer with any of the dental resins in a few months.

Formlabs' wide range of dental resins allows dental practices and laboratories to quickly manufacture a variety of dental products in their own facilities, from biocompatible surgical guides and splints to models for fixed prostheses and clear aligners.

Formlabs has developed the Custom Tray resin, a biocompatible material for directly printing dental impression trays for implants, prostheses, crowns and bridges, as well as other more complex applications. Digitally manufactured dental impression trays provide robust and accurate impressions for high quality dental service.

Custom Tray

Image 1: Print tray printed with Custom Tray Font: Formlabs.

Custom Tray is a fast printing material that allows the use of layer heights up to 200 microns, thus reducing working time and achieving higher performance.

To use the Custom Tray resin and carry out the printing process optimally, the following materials and devices must be used:

3D printers: Form 2, Form 3B, Form 3B+, Form 4B.
Resin tanks: Form 2 LT, Form 3/3B V1/V2/V2.1, or Form 4.
Build platforms: Form 3, Form 3 2, Form 3 Stainless Steel, Form 3L, Form 3L 2L, Form 4, Form 4 Flex.
Form Wash.
Form Cure.
Finishing kit.

The manufacturing process with the Custom Tray resin is the following:

1. Scanning: To begin, the patient's anatomy must be scanned. In this way, a digital impression of the patient's anatomy will be obtained, on which to work and create a custom tray.

2. Design: Different dental software is available to digitally design custom impression trays. One of them is ZirkonZahn.Tray; a free dental CAD software for designing custom trays that integrates with FormLabs Preform Software.

3. 3D printing: To print the digitally designed file, you must import it from Preform, select the material to be used, and modify the different options offered by the Software regarding orientation, supports, etc.

4. Post-processing: First, the parts must be removed from the construction platform. Then, the parts must be washed, dried and cured according to the parameters indicated in the "Specifications" section. Finally, the supports must be carefully removed and any areas where the supports have left any uneven areas must be polished with a hand motor.

5. Cleaning and disinfection: Finally, the parts must be cleaned and disinfected. After cleaning, look for cracks in the workpiece. If any cracks are found, the workpiece must be discarded immediately. A proven method for disinfection is to immerse the parts in a solution with 70% IPA alcohol for 5 minutes. After disinfection, the part should be re-inspected for cracks.

To download the complete printing guide, go to "Downloads".

Thus, the Custom Tray resin is a biocompatible material, designed to be used in a wide variety of applications in the dental industry.

To ensure the biocompatibility of Custom Try resin, the use of dedicated tanks, construction platform and finishing kits are required and should only be used with this and other biocompatible Formlabs resins.

General information
Manufacturer	FormLabs
Material	Photopolymer
Format	1 L / 5 L
Technology	SLA / LFS
Wavelength	UV 405 nm
Compatible resin tanks	Form 2 LT / Form 3/3B V1/V2/V2.1, Form 4
Compatible 3D printers	Form 2, Form 3B/3B+, Form 4B

Printing properties
Layer height	200 µm
Layer exposure time	-
Layer off time	-
Bottom layer exposure	-
Bottom layer count	-

Curing and washing properties
Washing time	10 min
Curing time	30 min
Curing temperature	60 ºC

Mechanical properties (uncured / cured)
Izod impact strength	- KJ/m²
Charpy impact strength	- KJ/m²
Elongation at break	(ASTM D638) 3.2 %
Tensile strength	(ASTM D638) 74 MPa
Tensile modulus	(ASTM D638) 2900 MPa
Flexural strength	(ASTM D790) 110 MPa
Flexural modulus	(ASTM C790) 2700 MPa
Surface hardness	(ASTM D2240) Shore 82 D

Thermal properties (uncured / cured)
Softening temperature	- ºC

Other
HS Code	2916.1
Lifetime (since manufacturing)	24 M

Here below, a series of usage tips that must be taken into account at all times with the use of FormLabs resins are cited:

Change cartridge

Changing the resin cartridge of the FormLabs printers is very simple, just close the top cap of the ventilation duct (vent) and remove the cartridge by holding it by the handle it has. Then the other is inserted and the vent plug is opened in case an impression is to be started. To avoid drips through the 3D printer, this process must always be carried out with the resin tank mounted.

Tapón de ventilación FormLabs

Imagen 1: Tapón de ventilación de los cartuchos de FormLabs. Fuente: FormLabs

Después de terminar cada impresión se debe cerrar el tapón superior para que la resina mantenga sus propiedades. Además, en caso de no utilizar la impresora durante algún tiempo, se debe guardar el cartucho en su caja original para mantener las propiedades de la resina intactas.

Resin tank

Each type of resin should have its own resin tank, which should be changed after using 2L of resin. The Custom Tray resin is compatible with the Form 2 LT, Form 3/3B V1/V2 and V2.1 resin tanks, and Form 4 resin tank.

Tanque de Resina LT de FormLabs

Image 2: FormLabs Resin Tank LT. Source: FormLabs

To protect and store the excess resin in the tank after each printing, FormLabs supplies a lid that ensures a perfect closure. Once the tank is closed, it is recommended to store it (with resin and lid) in the original box so that the resin doesn't lose its properties when exposed to UV rays for a long time. Another point to keep in mind is that the tanks can't be cleaned with any cleaning product or similar (for example, isopopyl alcohol), since they lose certain qualities that can cause continuous failed impressions.

Failed printing

When an error occurs in printing may be because solid parts of a previous printing have fallen to the resin tank. In this case, a spatula at 45° must be passed through the printing tank, gathering all the solid parts in a corner and removing them. To ensure that the tank resin doesn't contain any solid parts, the resin should be cast with a 190 μm paper filter. Once cast, it is put back into the tank and it is ready to be used again.

Video 1: Clean resin tank. Source: FormLabs

Isopropyl alcohol

Isopropyl alcohol is the key to the washing and post-processing of parts and you should know when it is time to change it. In the Finish Kit the moment to change it's when the IPA (Isopropyl Alcohol) is so saturated with resin particles, that after washing the pieces are still sticky. At that point you must remove all the liquid, clean the container well and throw new IPA, but never fill in on the previous one.

Finish Kit FormLabs

Image 3: Finish Kit FormLabs. Source: FormLabs

In the Form Wash, the wash center itself indicates through its screen when it is time to change the isopropyl alcohol.

Video 2: FormLabs Ecosystem. Source: FormLabs

If you wish you can hire our SLA 3D printing training courses (online or in person) by contacting us through the contact form. The training is oriented to obtain a wide knowledge and know how to use the 3D SLA FormLabs printers from the beginning and thus avoid major errors.