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›M11: Zirconia crown on #5, front abutment of a bridgeEnglish한국어Exit lesson
M11 · 6 steps

M11: Zirconia crown on #5, front abutment of a bridge

A full-coverage zirconia crown prep on #5, the upper right first premolar, cut as the front abutment of a bridge whose back abutment is #3: occlusal reduction, nearly parallel axial walls, a chamfer margin at the gum line, and one line of draw shared with #3.

Unlock the full library

M11 has 6 steps, step pictures 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 · Published criteria sheet 2
English한국어
✕M11: Zirconia crown on #5, front abutment of a bridge
M11: Zirconia crown on #5, front abutment of a bridge

A full-coverage zirconia crown prep on #5, the upper right first premolar, cut as the front abutment of a bridge whose back abutment is #3: occlusal reduction, nearly parallel axial walls, a chamfer margin at the gum line, and one line of draw shared with #3.

Outline · 6 steps
1. Make the two putty matrices on the uncut teeth
2. Cut depth grooves across the cusps
3. Reduce the occlusal along both cusp inclines
4. Cut the axial walls on #5's long axis
5. Finish the chamfer margin at the gum line
6. Cut #3 on the same line of draw and check the neighbors

Unlock the full library

M11 has 6 steps, step pictures 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 · Published criteria sheet 2

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