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M2 · 6 steps

M2: PFM crown

The PFM crown prep on #3 that your bench test cuts. Six steps cover the facial depth grooves, two-plane facial reduction, the occlusal table, the lingual wall, a facial shoulder with a lingual chamfer, and the proximal draw and margin.

Unlock the full library

M2 has 6 steps, a 3D view and checks. They open with the $99 season (90 days), the $149/yr student seat, or a class code that assigns this lesson. M0 and M1 are free.

Unlock the full library Open free M1
Sources: Published criteria sheet 1
English한국어
✕M2: PFM crown
M2: PFM crown

The PFM crown prep on #3 that your bench test cuts. Six steps cover the facial depth grooves, two-plane facial reduction, the occlusal table, the lingual wall, a facial shoulder with a lingual chamfer, and the proximal draw and margin.

Outline · 6 steps
1. Make facial depth grooves
2. Reduce facial surface in two planes
3. Reduce occlusal/incisal table anatomically
4. Prepare lingual axial wall
5. Create shoulder facially and chamfer lingually
6. Refine proximal draw and margin

Unlock the full library

M2 has 6 steps, a 3D view and checks. They open with the $99 season (90 days), the $149/yr student seat, or a class code that assigns this lesson. M0 and M1 are free.

Unlock the full library Open free M1
Sources: Published criteria sheet 1

Practice feedback against the 2026–27 published crown-prep criteria (molar). Not an exam or admissions result; your program and examiners decide.