Full gold crown prep, step by step (#30)
OslerPress guide · 8 min read
Depth-orient the grooves, reduce the occlusal table following the anatomy and add the functional cusp bevel, all inside 1.0–2.0 mm on the cast-metal sheet.
#30, in the order you cut
- Depth grooves
- Occlusal table
- Functional cusp bevel
- Axial walls
- Proximal opening
- Chamfer, checked with the putty index
Figure 1. Steps in the order you cut them.
Step 4: axial walls
Taper up to 12° per wall adheres; over 12° to 16° per wall is marginally substandard; over 16° per wall is critically deficient (2025 cast-metal sheet).
OslerPress scores 12° or less per wall as within.
Steps 5–6: proximal and margin
Open the proximal surfaces without touching #29 or #31, then finish a continuous chamfer and check clearance with the putty index.