Troubleshooting Dental Impressions

Dental Impressions Troubleshooting Guide

Want better impressions? Even the most experienced clinician can encounter clinical challenges with the dental impression procedure. Our impression troubleshooting guide gives you the information you need make accurate impressions every time.


  • Voids are commonly identified as "holes" on the margin of the prepared teeth. Sometimes voids can lead to margins which are incomplete. This can cause short crown margins and/or open margins in the final restoration. Learn common ways to adjust the dental impression procedure to minimize voids.

  • Visible rips or tears on the margin of the preparation can result in short crown margins and/or open margins. Learn common ways to adjust the dental impression procedure to minimize tearing.

  • Dental labs report that it is common to receive impressions with obscured margins. This causes the dental lab to guess where the margin ends which can result in a poor-fitting restoration. Learn common ways to adjust the dental impression procedure to ensure margins are sharp.

  • Minor distortions may not even be visible to a dentist or dental lab. A case with quality margins, fit and function can only be created utilizing an accurate, distortion-free impression. Learn common ways to adjust the dental impression technique to minimize distortions.


Troubleshooting Dental Impressions
Not seeing what you need?

Download our comprehensive guide to troubleshooting most common dental impressioning issues, including a bonus section on 10 Golden Rules for Taking Perfect Dental Impressions.

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Are you looking for more information?

Visit our Dental Impressions page for more information about the types of dental impression materials and the digital impression systems 3M offers or browse our selection of impression materials and equipment.

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