The shift from physical impressions to digital scans has been one of the most significant transitions in modern dentistry. At Respect U Dental Lab, we accept and work with both — giving us a uniquely practical perspective on the trade-offs.
Accuracy: The Numbers Tell the Story
Modern intraoral scanners achieve trueness values of 10–30 microns — comparable to, and often better than, conventional impressions when the latter are affected by material distortion or shipping. For full-arch cases, physical impressions with high-quality PVS materials can still offer advantages, though advanced scanners continue to close this gap.
Speed and Convenience
Digital scans can be transmitted to our lab within minutes of taking them. This eliminates overnight shipping delays and allows us to begin design work the same day. For urgent cases requiring next-day delivery, digital submission is almost always the better choice.
When Physical Impressions Still Shine
Deeply subgingival margins, patients with an active gag reflex, and cases involving significant undercuts may still favor physical impressions in some clinical situations. Additionally, the cost of intraoral scanners remains a barrier for some practices — though the ROI calculation becomes more favorable as case volume increases.
Our Lab's Recommendation
We recommend that practices invest in an intraoral scanner that outputs open-format STL or PLY files. This ensures compatibility with our CAD/CAM software and avoids vendor lock-in. We currently accept files from all major systems including 3Shape TRIOS, Dentsply Sirona Primescan, Medit i700, and iTero.
Whether you send digital scans or physical impressions, our quality control protocols ensure that you receive a precise, well-fitted restoration. If you'd like to discuss the best submission method for your case type, call us or reach out through our contact form.