B.1.1. PMMA CAD-CAM DISC multilayer
Multi-layered, pre-coloured PMMA discs for making temporary crowns and bridges. A multi-layered disc is composed of five shades of colour with gentle colour transitions that give it a natural look.
Vickers hardness: min 26 HV.
Flexural strength: min. 114 MPa.
E-Module: min. 2771 MPa.
Residual monomer < 1%.
Diameter: 95 - 100 mm.
Thickness: 15, 16, 18, 20 mm.
temporary crowns and bridges
A1, A2, A3, B1
POLIDENT PMMA CAD/CAM DISC type BASIC (monochrome), MULTILAYER and 3-LAYER are suitable
for manufacturing of long-term temporary crowns and bridges and for verifying the bridge on the
plaster model/mouth before the final ZrO2 milling process.
POLIDENT PMMA CAD/CAM DISC type MULTILAYER and 3-LAYER are composed by several different
layers. Layers colours are adapted to the natural colour gradient of the tooth. The final result is a
very aesthetic and economic restoration.
SOME RULES TO CONSIDER THROUGH THE PMMA C & B DESIGN:
The minimum wall thickness has to be 1,0mm in occlusal region and 0,6mm in cervical region.
The connector profile has to be more than 10mm2
in anterior region and more than 15 mm2
in posterior region.
A max of two pontics is allowed between two abutment teeth in posterior region.
Pay attention to the positioning of the restoration within the MULTILAYER and 3-LAYER disc.
The enamel layer is marked on the top of disc.
FINISHING C & B AND CEMENTING IN THE MOUTH:
Use burs for acrylic. Polishing is possible with polishing paste and soft hair brushes. Pay
attention not to overheat the material!
For cementing the bridge use temporary cement.