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✕›M1 part 6 of 8English한국어11 of 13Exit lesson
M1 part 6 of 8 · Full gold crown, #30

Guided cut

Cut the prep on your typodont one step at a time. Stop after each step and check it against the card before you move on.

Loading 3D view…

  1. After step 1: Depth-orient occlusal grooves
    Are the depth grooves inside the occlusal band?
  2. After step 2: Reduce occlusal table following anatomy
    Does the table still follow the cusps?
  3. After step 4: Axially reduce walls
    Read each wall on its own along the line of draw.
  4. After step 5: Open proximal surfaces with guarded bur
    Look at #29 and #31 directly.
  5. After step 6: Finish continuous chamfer and verify clearance with putty index
    Seat the sectioned putty index and read the gap.
3D model: molar30.glb: teeth #29–#31, jaw bone and gum. BodyParts3D, © 2008 Life Science Integrated Database Center (DBCLS); modified by Osler Press. CC BY-SA 2.1 JP · source
3D viewer code. three.js authors. MIT · source
BackNext: Cut and score
English한국어
✕M1 · Full gold crown, #3011/13
Guided cut

Cut the prep on your typodont one step at a time. Stop after each step and check it against the card before you move on.

Loading 3D view…

  1. After step 1: Depth-orient occlusal grooves
    Are the depth grooves inside the occlusal band?
  2. After step 2: Reduce occlusal table following anatomy
    Does the table still follow the cusps?
  3. After step 4: Axially reduce walls
    Read each wall on its own along the line of draw.
  4. After step 5: Open proximal surfaces with guarded bur
    Look at #29 and #31 directly.
  5. After step 6: Finish continuous chamfer and verify clearance with putty index
    Seat the sectioned putty index and read the gap.
3D model: molar30.glb: teeth #29–#31, jaw bone and gum. BodyParts3D, © 2008 Life Science Integrated Database Center (DBCLS); modified by Osler Press. CC BY-SA 2.1 JP · source
3D viewer code. three.js authors. MIT · source
Outline · 8 parts✓Criteria card✓Anatomy in 3D✓Steps1Depth-orient occlusal grooves2Reduce occlusal table following anatomy3Add functional cusp bevel4Axially reduce walls5Open proximal surfaces with guarded bur6Finish continuous chamfer and verify clearance with putty index✓Within vs outside✓Check6Guided cut7Cut and score8Recall: day 3 and day 10

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

BackNext: Cut and score