What is the difference between vacuum- and compressed air technique in general?
Using a vacuum the thermoforming material is drawn onto the model. Using compressed air technique the thermoforming material is pressed on the model. Forestadent only offers the TRACK V – Vacuum thermoforming unit.


I have heard that vacuum units would not produce good thermoforming results.
That is proved to be incorrect. When thermoforming it is very important that a rapid forming is realized. This is ensured by a reserve vacuum inside the Track-V unit. The reserve vacuum guarantees that the vacuum already exists before the thermoforming phase and thus takes a immediate effect. If the temperature of the thermoforming material is set correctly, the differences of thermoforming results between vacuum units and compressed air technique units are indeed negligible. Although there a definite handling advantages when using a vacuum unit like Track-V.


What are the advantages of a TRACK V – Vacuum thermoforming unit?
First, no compressed air supply is needed, thus no installation is necessary for that. When choosing a TRACK V – Vacuum thermoforming unit, a universally employable, easy to handle product is obtained at a favourable price. The TRACK V has a touchless temperature control (sensor) and a touchpanel, which guides you through the whole thermoforming process. If a Okkludator (ref.no. 408-0706) device is also obtained, thermoforming and imprinting of the opposing bite is also possible – all in one process.


What are the costs of these units?
Please contact your FORESTADENT partner.


Thermoforming materials - in general. Which foil for which
application?
Please see table. (.pdf)


How can an isolating foil be removed, e.g. when using Track A? 
After detaching and snatching the foil as shown on that image,
the foil can easily be fully detached by shaking motions.


Which foil is suitable for building up an adjustment?
TRACK A, TRACK B (hard side), TRACK PC


There occur cracks when applying acrylic (e.g.Forestacryl) to foils
Before building up acrylic on a foil, take the splint off the model and fill the target area with some material. A basic layer is established. After that, the splint can be built up as usual.


The foil shows bubbles after heating up
That may happen when the foil is stored in a too humid place. Please pre-dry the foil
following the detailled instructions. (See next page.)



TRACK A

After heating up, the foil shows bubbles.
Foil was stored in a too humid place.
Please pre-dry in the heating cabinet, or in an oven 5 hours at 60° C:
- 0.5 mm
- 0.6 mm
- 0.8 mm
- 1.0 mm
- 1.5 mm

For More details click here.

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TRACK B
 
The splint looks milky after thermoforming.
Reason: Hot foil takes in plaster particles. Please isolate the plaster against the foil by using Isolac or thermoform TRACK B together with universal UZF (spacer foil). Put the spacer foil towards the model.

For More details click here.

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TRACK C

Thermoforming result does not satisfy.
 There can be different reasons for that, e.g.
- model has a sharp edge (resulting in a hole in the foil)
- heating unit is too weak (too old)
- thermoforming unit is damaged.

With not program-driven units: overheated foil or heated up too shortly.
High sized models should be embedded into the granules. Compress the granules.

With not program-driven units: Foil has to run through the following different phases: It raises, it lowers, it becomes wavy, it becomes transparent, it smoothes itself out - time to thermoform.
     
For More details click here.

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TRACK E

The splint is milky after thermoforming.
Reason: Hot foil takes in plaster particles. Please isolate the plaster against the foil by using Isolac or thermoform TRACK E together with universal UZF (spacer foil). Put the spacer foil towards the model.

Is it possible to polish TRACK E using a flame?
No. Using a flame leads to overheating or to heating up a too extensive area. In addition soot may form.
Recommendation: After pre-polishing, polish TRACK E using heat. To avoid blackening/soot formation please use a hot-air-burner which works without a flame.
     
For More details click here.
 
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TRACK PC
     
After heating up, the foil shows bubbles.
Foil was stored in a too humid place.
Please pre-dry in the heating cabinet, or in an oven at max. 60° C:
- 1.0 mm: approx. 5 h pre-heating time

For More details click here.

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TRACK Bleach

The bonding of two TRACK Bleach plates by using heat does not work.
Please use a degreaser in order to remove isolating particles. Please put cover templates on the granules before using the degreasing agent.

How is it possible to polish TRACK Bleach?
After pre-polishing, polish TRACK E using heat. To avoid blackening/soot formation please use a hot-air-burner which works without a flame.

For More details click here.