Advanced Acrylic Material Enables inLab users to Eliminate Wax-Up process and Fabricate Crown and Bridge Frameworks Within Minutes
Sirona Dental Systems, the world’s leading producer of dental CAD/CAM systems, today announced the availability of VITA CAD-Waxx millable casting blocks for use with Sirona inLab®.
Instead of using modeling wax to manually create wax-ups by hand, the technician designs the fully-contoured crown, bridge, coping or framework using the inLab 3D software. Once satisfied with the design, the data is sent to the inLab milling machine, where it is precision-milled out of the CAD-Waxx block in a matter of minutes. This technique eliminates the traditionally labor-intensive wax-up process, as well as saving time since the design can be quickly and efficiently accomplished on-screen.
According to Norbert Ulmer, Marketing and Sales Manager for Sirona’s Lab Division, “CAD-Waxx blocks further expand the versatility of inLab by improving the speed and accuracy of the traditional lost-wax casting technique. Also, because the acrylic is more rigid than modeling wax, the milled CAD-Waxx models can be tried on the model or in the mouth for proper fit before the final metal restoration is fabricated.” Additionally, CAD-Waxx material is more durable and reliable to work with, as the acrylic maintains high torsional resistance and dimensional accuracy compared to modeling wax.
Another advantage of using CAD-Waxx blocks with inLab lies in the fact that
during the design process, the inLab 3D software takes minimum layer thicknesses and
juncture sizes into account. These parameters are essential factors to obtain a reliable
foundation for the layering of porcelain to build up the final restoration. VITA CAD-Waxx blocks are made of a filler-free acrylic polymer that burns out without leaving any residue, and are available in a size of 14mm x 15mm x 40mm to facilitate the fabrication of single-unit restorations as well as long-span bridges up to 40mm in length.