Surface area
Same height but different width
Same
width but different height
Same height but different width
STRUCTURAL DURABILITY
• Restoration must contain bulk of material that is
adequate to withstand the forces of occlusion.
•
This bulk must be confined to the space created by the
tooth preparation.
•
Only this way the occlusion will be harmonious and
axial contours normal.
STRUCTURAL DURABILITY
1. Occlusal Reduction.
2. Functional Cusp Bevel.
3. Axial reduction
