Shoulder Preparation
Posted on 08/10/2011
The shoulder finishing line is ideal for PFMs with porcelain margin or All Ceramic restorations (including E.Max or Zirconia with Porcelain Overlay). It requires a straight edge (with either a 45 or 90 degree angle) flat surface without a lip. It can be created using a flat end tapered diamond.
A shoulder preparation for a porcelain butt margin requires a complete right angle 90 degree shoulder. The right angle can be created with a flat end bur such ase the Brassler 558 and finished with a flat end diamond such as the Brassler 846.
A shoulder preparation for a porcelain butt margin requires a complete right angle 90 degree shoulder. The right angle can be created with a flat end bur such ase the Brassler 558 and finished with a flat end diamond such as the Brassler 846.
