Ivoclar Vivadent Vectris - Manual (Page 22)

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2. Designing the framework for single crowns
Whether Transil should be utilized to fabricate the framework for a single crown depends on the preparation. In principle,
it is advisable to create a Transil matrix for every framework to facilitate the adaptation of the Vectris fibres to the die.
2.1 Anterior crowns
When the framework for an anterior crown is fabricated, it is advisable to use the Transil technique to facilitate the adap-
tation of Vectris Single to the die. The Transil technique helps to attain a consistent layer thickness on both the tooth
surface and incisal edge of steep, sharply pointed anterior preparations in particular. Upon completion of the vacuum-
forming process, merely trim the margins of the Transil matrix. Do not grind the surfaces.
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2.2 Posterior crowns with a flat occlusal preparation
If a flat occlusal preparation is present, it is not necessary to use Transil. With flat preparations, Vectris Single adequately
adapts to the preparation margins during the vacuum-forming process and a consistent layer forms on the occlusal
surface even without the use of Transil. Adapt the laboratory silicone as described above. After separating it with Vectris
Model Separator, apply Vectris Glue and Vectris Single and then cover it with a Vectris foil. Start the vacuum-forming
process in the Vectris VS1. Upon completion of the program, trim and taper the margins. Do not grind the surfaces.
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