We have several types of crown designs, but here, we shall limit ourselves to select few, most common ones. For detailed study, one can consult a standard text book. The main types of the crown preparations are:
- Full cast metal crown
- Porcelain fused to metal crown
- All ceramic crown
- Crown preparations specially designed for specific material
Your main focus should be on the type of finish lines and the thickness of the crown/abutment preparation. For details of various finish lines you can see HERE.
For amount of crown cutting and the optimum needed width of the finish line, you can go HERE.