Occlusal reduction on a crown prep: 1.0–2.0 mm
OslerPress guide · 5 min read
The sheet's three bands: “The occlusal reduction is ≥ 1.0 mm but ≤ 2.0 mm.” “The occlusal reduction is > 2.0 mm but ≤ 2.5 mm.” “A. The occlusal reduction is > 2.5 mm. B. The occlusal reduction is < 1.0 mm.”
Figure 1. Reduction follows the cusp anatomy, not a flat cut.
How to get it even
Cut depth grooves first with a depth-cutting diamond, then join them following the cusp inclines. The functional cusp bevel stays inside the same band.
1.0–2.0 mm scores as within. Under or over scores as outside, with the measured depth.
Check it
Section the putty index through the prep and photograph it: the gap between index and prep is the reduction.