Studies confirm accuracy of Primescan

Digital impressions made with Primescan are, fast and accurate and easy to take. (Image: Dentsply Sirona)
TextDental Tribune International

CHARLOTTE, N.C., U.S.: Dentsply Sirona introduced Primescan at the beginning of last year. According to the company, it was met with extensive positive feedback from dentists. Several international studies back the experiences reported by various dental practices with clear scientific data.

A study conducted at the Medical University of South Carolina in the U.S. demonstrated the versatility of the acquisition technology of Primescan, as it not only records natural and prepared tooth surfaces with high precision, but also captures materials used in dentistry with a high degree of accuracy across all substrates and for complete arch scanning. They further tested the effect of different substrates on the trueness and precision of eight different intraoral scanners. In 11 of 15 categories, Primescan ranked first, and for the remaining four categories, Primescan ranked among the top three.

An in vivo study done by the University of Gießen in Germany confirmed the accuracy of digital and conventional full-arch impressions in patients, and results show that among the tested scanners, only Primescan showed no significant deviations to long-span accuracies obtained with conventional impressions.

A study conducted in Beijing in China tested the precision of Primescan and two other intraoral scanners in edentulous jaws. The precision of Primescan was significantly better than the other two scanners for maxilla. In trueness of the three scanners, when scanning the maxilla and mandible, there was no significant difference.

The results of a 2020 in vitro study by the University of Zurich in Switzerland showed that the preparation margin accuracy of Primescan was significantly better than the other intraoral scanning systems involved in the study in local accuracy for single-tooth preparations.

The studies confirm again that, with Primescan, we have provided our customers with a high-quality technology that delivers truly impressive results, said Dr. Alexander Völcker, Group Vice President CAD/CAM at Dentsply Sirona. We continue to add and improve workflows with Primescan as we’re convinced Primescan’s outstanding technology opens the doors for more applications in digital dentistry. Thanks to the technology of high-frequency contrast analysis, Primescan enables our customers to achieve outstanding accuracy in digital impression. And the extensive positive feedback from our respected experts and users all over the world, our most important compass, encourages us to continue to lead in this area’s development and innovation.” 

“As a dentist, my expectation of myself is to deliver exceptional results for every one of my patients.” said Dr. Carlos Repullo, a dentist from Seville, Spain. “And with Primescan I can do so. The scan delivers a precision that one can scarcely imagine being improved. And this also applies to a full jaw scan, which can be prepared exceptionally quickly. This is exactly the quality we need in our practices.” 

About Primescan

Primescan, the latest generation of intraoral scanners, is designed for different digital workflows—in practice with CEREC as well as with the dental laboratory or other partners. Using the Connect software, a digital 3D model can be transferred directly to the laboratory of choice for further processing. Using high-resolution sensors and a short-wave light, a scan of the tooth surfaces is accurately captured. Up to one million 3D pixels per second are captured by Primescan, and these can be executed more reliable than ever using optical high-frequency contrast analysis.

More information about Primescan can be found at