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Temporary CB dental resin - FormLabs

Ref.: RS-FORM-TEMPORARYCB-A2

499.00 €

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Type of resin

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Approximate delivery date: Friday 22 November - Wednesday 27 November

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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 (biocompatible) allow models of crowns and bridges, surgical guides, splints and retainers to be made 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.

Temporary CB is a tooth-coloured resin, developed for the purpose of 3D printing of temporary crown and bridge restorations, inlays and onlays and veneers. It can be used for bridges of up to seven units and is available in the following VITA shades:

VITA tones

Image 1: VITA colour chart. Source: vita-zahnfabrik.

In addition, it provides excellent edge adaptation, strength and aesthetics.

Traditional temporary cements should be used to secure restorations made of Temporary CB resin. Restorations made with the Temporary CB resin can remain in the mouth for up to 12 months. Digitally created restorations enable a fast and collaborative process between dentists, technicians and patients.

To print with the CB Temporary Resin, a Stainless Steel Fabrication Platform is required. The Temporary CB Resin contains a ceramic filler that would produce abrasion on the standard impression platform, causing contamination of the resin and possible staining or colour modification. By using the Stainless Steel Fabrication Platform we avoid abrasion and its negative effects.

In addition, parts printed with Temporary CB can be tinted using light-curable coatings such as GC Optiglaze.

pieza impresa con temporary cb

Image 2: Piece printed with Temporary CB and nuanced. Source: FormLabs.

The combined use of the Stainless Steel Fabrication Platform and the Temporary CB resin ensures a uniform shade and maintenance of the material properties. This platform is not necessary when using other FormLabs resins.

Applications in the dental sector:

Development of bridges.
Onlay, Inlay restorations
Temporary veneers.

Temporary CB resin is a biocompatible material that can be implanted for a period of less than one year, designed for use in a wide variety of applications in the dental industry.

This resin is not compatible with Form 3. It requires the use of a LT resin tank in case of using a Form 2 and the use of a Stainless Steel Fabrication Platform.

To ensure the biocompatibility of Temporary CB resin, the use of dedicated tanks, stainless steel 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
Technology	SLA / LFS
Wavelength	UV 405 nm
Compatible resin tanks	Form 2 LT / Form 3
Compatible 3D printers	Form 2 / Form 3B

Printing properties
Layer height	50 µm
Layer exposure time	-
Layer off time	-
Bottom layer exposure	-
Bottom layer count	-

Curing and washing properties
Washing time	3 min
Curing time	40 min
Curing temperature	60 ºC

Mechanical properties (uncured / cured)
Izod impact strength	- KJ/m²
Charpy impact strength	- KJ/m²
Elongation at break	- %
Tensile strength	- MPa
Tensile modulus	- MPa
Flexural strength	(ASTM D790) 100 MPa
Flexural modulus	- MPa
Surface hardness	-

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

Image 1: Ventilation cap for FormLabs cartridges. Source: FormLabs

After finishing each print, the top cap must be closed so that the resin maintains its properties. In addition, if the printer is not used for some time, the cartridge should be stored in its original box to keep the properties of the resin intact.

Resin tank

Each type of resin should have its own resin tank, which should be changed after using 2L of resin. The Temporary CB resin is compatible with the LT resin tank and the Form 3 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.