Oral Health Group

Still Leading the Pack: New Studies Confirm the Exceptional Accuracy of Primescan

October 29, 2020
by Dentsply Sirona

Dentsply Sirona presented the latest generation of its intraoral scanners at the beginning of last year: Primescan enables users to take a digital impression of the entire jaw with outstanding accuracy. This has been demonstrated by several international studies that support the extensive positive feedback on Primescan from various dental practices with clear scientific data.

 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.

New studies confirm high performance of Primescan

Primescan enables highly precise digital impressions to be taken over the entire jaw, as evidenced by a 2019 University of Zurich study.1 Recently, Primescan’s accuracy has been further demonstrated once again by national and international studies.3-5

The study of Dutton et al. demonstrates 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.3 They further tested the effect of different substrates on the trueness and precision of eight different intraoral scanners. In 11 out of 15 categories, Primescan ranked number one, and for the remaining four categories, Primescan ranked among the top three.3

Primescan’s impressive degree of precision in taking digital impression over the entire jaw1 continues. An in-vivo study done by the University of Gießen confirms 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.4

A study by Beijing University 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.5 In trueness of the three scanners, when scanning the maxilla and mandible, there was no significant difference.5

The results of the 2020 in vitro study by the University of Zurich 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.2

Dentists like the fact that, with Primescan, it is possible to scan deep regions (up to 20 mm). This allows a digital impression even with subgingival or particularly deep preparations. Almost all tooth surfaces are captured, even when scanning from a very sharp angle.

Our customers are our compass

“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.”

Dr. Alexander Völcker, Group Vice President CAD/CAM at Dentsply Sirona

“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.”

More information about Primescan at: www.dentsplysirona.com/primescan


  1. Ender A, Zimmermann M, Mehl A. Accuracy of complete- and partial-arch impressions of actual intraoral scanning systems in-vitro. Int J Comput Dent 2019;22(1):11-19.
  2. Zimmermann M, Ender A, Mehl A. Local accuracy of actual intraoral scanning systems for single-tooth preparations in vitro. J Am Dent Assoc 2020;151(2):127-135 (doi.org/10.1016/j.adaj.2019.10.022).
  3. Dutton E, Ludlow M, Mennito A et al. The effect different substrates have on the trueness and precision of eight different intraoral scanners. J Esthet Restor Dent 2020;32(2):204-218 (doi: 10.1111/jerd.12528. Epub 2019, Sep 30).
  4. Schmidt A, Klussmann L, Wöstmann B, Schlenz MA. Accuracy of Digital and Conventional Full-Arch Impressions in Patients: An Update. J Clin Med 2020;9(3):688 (doi: 10.3390/jcm9030688).
  5. Cao Y, Chen JK, Deng KH et al. [Accuracy of Three Intraoral Scans for Primary Impressions of Edentulous Jaws.] Beijing Da Xue Xue Bao Yi Xue Ban 2020;52(1):129-137.


Dentsply Sirona is the world’s largest manufacturer of professional dental products and technologies, with over a century of innovation and service to the dental industry and patients worldwide. Dentsply Sirona develops, manufactures, and markets a comprehensive solutions offering including dental and oral health products as well as other consumable medical devices under a strong portfolio of world class brands. Dentsply Sirona’s products provide innovative, high-quality and effective solutions to advance patient care and deliver better and safer dental care. Dentsply Sirona’s headquarter is located in Charlotte, North Carolina. The company’s shares are listed in the United States on NASDAQ under the symbol XRAY. Visit www.dentsplysirona.com for more information about Dentsply Sirona and its products.


This information and any attachment thereto contains “forward-looking statements” within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Such statements are not guarantees of future performance. These forward-looking statements reflect views and assumptions regarding expectations and projections about future events and are based on currently available information or information available on the date of any document incorporated by reference. You can generally identify these forward-looking statements by the use of words such as “may,” “could,” “estimate,” “will,” “believe,” “anticipate,” “think,” “intend,” “expect,” “project,” “plan,” “target,” “forecast”, and similar words and expressions. However, these words are not the exclusive means of identifying such statements. In addition, any statements that refer to expectations, projections or other characterizations of future events or circumstances are forward-looking statements and may include statements relating to future revenues, expenses, margins, profitability, net income/(loss), earnings per share and other measures of results of operations and the prospects of future growth of our business. These forward-looking statements are inherently subject to uncertainties, risks and changes in circumstances that are difficult to predict. For a discussion of such risks, uncertainties and other matters that could cause actual results to differ materially, including risks relating to, among other factors, the market for dental products and services, pricing, future sales volume of the Company’s products, the possibility of changing economic, market and competitive conditions, dependence on products, dependence on key personnel, technological developments, intense competition, market uncertainties, dependence on distributors, ability to manage growth, dependence on key suppliers, dependence on key members of management, government regulation, our ability to integrate the businesses of Dentsply Sirona, acquisitions and affiliations, readers are urged to carefully review and consider various disclosures made by the Company and Dentsply Sirona in their public filings, including in their Annual Reports on Form 10-K and in their reports on Forms 10-Q and 8-K filed with the Securities and Exchange Commission.

Readers are cautioned not to place undue reliance on such statements, which speak only as of the date hereof. Except as required by law, the Company does not assume any obligation to update any forward-looking statements contained in this document or the attachments to reflect new information or future events or developments after the date any such statement is made.