Ivoclar Vivadent Vectris - Manual (Page 48)

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U N I T I N L AY
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R E TA I N E D B R I D G E S
Starting situation
Fabricate a master model or a model with detachable
segments on the basis of the impression in the usual
manner. Expose and mark the preparation margin. It is
advisable to apply a sealer to harden the surface and to
protect the stone die from abrasion. The application of the
sealer must not cause any changes in the dimension of the
stone die. Subsequently, a spacer can be applied, if this is
the customary method of working.
Fabricate a working model.