1. involves
2. Factors Preventing Restoration Dislodgement
3. Factors Related to Marginal Integrity
4. Retention
5. Resistance
6. Circumferential Irregularities
7. Occluso-gingival Height
8. Occlusal Integrity
9. Marginal Adaptation
10. Marginal Geometry
11. strength
12. location
13. fit
14. Knife edge or Chisel
15. Chamfer
16. Shoulder Margin
17. 120 Degree Sloped Shoulder
18. Beveled Shoulder Margin
19. locate the margins in self cleansing areas
20. determine termination of the restoration
21. Types of Occlusal Forces
22. tipping
23. occlusal or forces along the path of insertion
24. twisting or rorational forces
25. Factors Contributing to Structural Durability
26. proper Axial Reduction
27. proper Incisal/Occlusal Reduction
28. proper Taper of Convergence of Axial Wall
29. proper Surface Area of Axial Wall Height
30. proper Ratio of Preparation Diameter to Axial Wall Height