Interproximal Relief and Complete Marginal Seating

Interproximal Relief and Complete Marginal Seating

In natural dentition, there is microscopic clearance or passive contact between teeth when they are in rest position, which is called Interproximal Relief (IR)*, and when a crown is fabricated, it is necessary to adjust the crown on the proximal contact surfaces to restore IR, and to achieve complete marginal seating for patient comfort and functionality.

Introducing PrepSure - Crown Preparation Guide

Introducing PrepSure - Crown Preparation Guide

I needed an instrument to guide and confirm the occlusal clearance mechanically to create ideal abutments every time for every patient. This avoids all the guesswork and any further waste of costly chair time, which could compromise an otherwise excellent patient experience.
And with that, PrepSure was born.

Adjust and Confirm Interproximal Relief

Adjust and Confirm Interproximal Relief

When seating crowns, Interproximal Relief (IR) should be restored as it exists in natural dentition. IR is the passive contact or microscopic clearance between teeth when they are in rest position. In my experiments, this clearance cannot be properly detected with floss, because floss is too thick and an inaccurate measuring device.