Upper Molar and Premolar Crown Preparation With Temporary Crowns

The video presents a step‑by‑step clinical protocol for crown preparation on an upper premolar and molar, demonstrating a standardized, efficient, and predictable technique.

What the video shows
- How to perform proper occlusal reduction on the upper premolar and molar, ensuring enough space for the final crown without over‑weakening the tooth.
- How to cut the axial walls with the correct convergence/divergence angle so the crown seats properly and resists dislodgement.

Margin design and finishing

- The choice of margin design (typically a chamfer or rounded shoulder) and the importance of a smooth, clearly defined finish line for good crown adaptation and clear communication with the lab.
- Emphasis that unclear or irregular margins lead to poorly fitting crowns, while well‑defined margins increase clinical predictability.

Burs, workflow, and common errors

- Selection of appropriate burs (size, shape, grit) for each stage: occlusal reduction, axial reduction, and margin finishing.
- A standardized workflow (isolation, pulp protection, occlusal reduction, axial preparation, margin finishing) and key clinical tips to avoid common mistakes such as insufficient reduction, poorly placed subgingival margins, uneven preparations, or excessive tooth heating.