All you need to know about Vertical Preparations

Let’s set the record straight: a Vertical Preparation is simply a crown preparation without a defined finish line — so your knife edge, feather edge, or shoulder-less margin.

Horizontal preparations are your defined shoulder or chamfer margins.

Clinicians using horizontal preparations, choose the location of the margin; whereas the lab technician determines the margin location in vertical preparations.

Why do clinicians LOVE vertical preparations?

• 1. More tooth structure is preserved in crown preparations
• 2. The final finish line can be finished at various levels, but is often chosen based on gingival tissue information
• 3. Crown emergence profiles can be modified
• 4. Increased gingival thickness at the margin
• 5. Improved coronal seal compared to horizontal preparations
• 6. Simpler and faster preparations
• Check out a more detailed 3D explanation below!

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