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›M8: Class III/IV compositeEnglish한국어Exit lesson
M8 · 6 steps

M8: Class III/IV composite

A Class III composite on the mesial of #9, with the Class IV extension when the incisal edge is involved, next to #8. Six steps cover access, entry, the bevel, matrix and placement, finishing and the contact and occlusion check.

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M8 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 · Published criteria sheet 2
English한국어
✕M8: Class III/IV composite
M8: Class III/IV composite

A Class III composite on the mesial of #9, with the Class IV extension when the incisal edge is involved, next to #8. Six steps cover access, entry, the bevel, matrix and placement, finishing and the contact and occlusion check.

Outline · 6 steps
1. Map lesion and choose facial/lingual access
2. Enter lesion with small round bur
3. For Class IV, include fractured incisal edge
4. Bevel enamel margin as indicated
5. Place matrix and composite
6. Finish/polish and check contacts/occlusion

Unlock the full library

M8 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 · 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.