CS 3500 Proven to Be Superior in General Trueness and Precision

In a recent study, the CS 3500 intraoral scanner was found to be scientifically superior to several manufacturers’ scanners in the areas of general trueness and precision.

“Trueness and Precision of Four Intraoral Scanners in Oral Implantology: A Comparative in Vitro Study,”1 evaluated four intraoral scanners by scanning two study models—one partially edentulous with three analogues, one completely edentulous with six analogues. Each scanner scanned each model five times for a total of 40 datasets. To determine general trueness, the datasets were reverse engineered by superimposing the scans onto the reference models. The scans were superimposed onto each other in groups to determine precision.

“‘Trueness’ and ‘precision’ are often incorrectly used interchangeably,” Ed Shellard, D.M.D., vice president, sales and marketing, Carestream Dental, said. “However, trueness measures how closely the scanner replicates the teeth being scanned while precision refers to how consistently the scanner produces correct results. True digital impressions are a must for correctly fitting restorations and appliances, while high precision guarantees consistent scans. ”

The study determined the CS 3500 intraoral scanner to be scientifically superior in general trueness (47.8 μm) and precision (40.8 μm) when scanning the partially edentulous maxilla. When scanning the totally edentulous maxilla, the CS 3500 again offered the best performance in both general trueness (63.2 μm) and precision (55.2 μm). Not only was the CS 3500 considered the most accurate and precise scanner overall, it proved to be “significantly better” than two of the other well-known intraoral scanners.

“We’ve always been proud of the CS 3500’s performance, so we’re pleased to see this study confirms what we’ve long known to be true,” Shellard said.

According to the study, “the main features that an intraoral scanner should possess in order to capture high-quality impressions are trueness and precision.” Accuracy (trueness) plays a vital role in the fit of final restorations and appliances. Also, since techniques for capturing a scan differ from user to user within a practice, it’s important that a scanner can be relied upon to deliver consistent, i.e., precise, results—no matter who’s using it.

To learn more about how the CS 3500 can provide both accurate and precise scans, please call 1.800.944.6365 or visit www.carestreamdental.com.

1Mangano FG, Veronesi G Hauschild U, Mijiritsky E, Mangano C. 2016. Trueness and Precision of Four Intraoral Scanners in Oral Implantology: A Comparative in Vitro Study. PLoS One. 11(9): e0163107.doi:10.1371/journal.pone.016310.7