Ivoclar Vivadent Vectris - Manual (Page 50)

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Contouring the pontic
First, seal the dies with a wax/stone or resin/stone separator. Contour the pontic on the master model in a cusp-supporting
manner similar to the metal-ceramic technique, using wax or composite (Light Tray). This step helps to obtain a
homogeneous layer thickness in the following veneering material. The occlusal abutment/pontic contact area in the cavity
should exhibit the following dimensions:
– cover the entire surface of the cavity
– length of the abutment/pontic area in the cavity: at least 4 mm
– thickness of the contact layer: at least 0.3 mm
– joint face of the connector: at least 3 x 3 mm
Check the pattern in the articulator and adjust as necessary. If a full wax-up has been prepared, the wax rims may be used
for checking purposes.
Contour the pontic on the master model.
Check the pattern in the articulator.
Conduct a final check of the duplicate model and check the dimensions of the pontic.
Tip:
The pontic can be contoured using a tray material (Light Tray) and adjusted by grinding after completion of the
polymerization process.
≥ 0.3 mm
≥ 3 mm
≥ 3 mm ≥ 4 mm
≥ 4 mm