Important; Retrusion - Ivoclar Vivadent Stratos 100 Mode D'emploi

5.3.2 Protrusion screw (10.0) for centric shift
The protrusion screw permits each condyle to be incrementally
advanced into a protrusive position.

Important:

In this case, the centric fixation cannot be used.
12
5.4

Retrusion

To simulate retrusive movements, the centric fixation lock (4.1)
must be open and the Bennett inserts (3.1) removed.
This allows retrusive movements to be carried out properly.
10.0