The basis for all cast intracoronal restorations begins with the understanding and execution of a refined Class II cavity preparation. After the basic preparation is completed, then and only then are add-ons made to the preparation to satisfy the requirements needed to restore the tooth to its best form and function. This lecture will only cover the basic preparation prerequisites.
- Decision making for a posterior intracoronal preparation.
- Difference between a defined and a refined preparation.
- Creating an esthetic intracoronal preparation design.
- What features in the preparation retain a casting.
- Importance and appreciation of a smooth refined cavity preparation.
- Importance of proportions between occlusal and proximal segments.