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today ADX Sydney 18-20 March

business 28 ADX Sydney 2016 n A new study evaluating the accuracy of six leading intra-oral scanners in the dental market has found 3Shape’s TRIOS to be both the most accurate and consistent performer of the scanners tested. The study, which was conducted jointly by the University of Mary- land in Baltimore and the Univer- sityofFreiburginGermany,aimed to compare the ability of intra- oral scanning systems of different brands to accurately scan a single molar abutment tooth in vitro. The analyses included the fol- lowing six scanners: iTero (Align Technology), 3M True Definition (3M ESPE), PlanScan (Planmeca), CS 3500 (Carestream Dental), TRIOS and CEREC AC Omnicam (Sirona Dental Systems). In order to compare the accura- cyofeachsystem,theinvestigators used an industrial-grade, highly ac- curate reference scanner to create a digital reference dataset for an acrylic dental model. A single trained, experienced dentist then scanned the acrylic model on three separate occasions using each of thesixintra-oralscanningsystems. Trueness (accuracy) was de- fined by superimposing the three digital datasets over the reference dataset,with3-Dcomparisonsthen performed. Precision (consisten- cy) was defined by superimposing each dataset over the other two datasets obtained and then evalu- ating for 3-D deviations. Ofthe18datasetsanalysed,the smallest deviations for the true- ness measurements (± standard deviation) between the reference dataset and the various intra-oral scanner datasets were obtained fromTRIOS(6.9±0.9µm),followed by CS 3500 (9.8 ± 0.8 µm), iTero (9.8 ± 2.5 µm), 3M True Definition (10.3 ± 0.9 µm), PlanScan (30.9 ± 10.8 µm) and CEREC AC Omnicam (45.2 ± 17.1 µm). Asforprecisionvalues,heretoo TRIOS was identified as the most accurate(4.5±0.9µm),followedby 3M True Definition (6.1 ± 1.0 µm), iTero (7.0 ± 1.4 µm), CS 3500 (7.2±1.7µm),CERECACOmnicam (16.2±4.0µm),andPlanScan(26.4 ± 5.0 µm). “The TRIOS scanning technol- ogy,incombinationwiththewand design, seems to be beneficial for capturing high quality datasets with excellent trueness and pre- cision values,” the investigators said. However, the results obtained do not provide any information about the quality of a fabricated restoration based on these digital datasets,theresearchersstressed. Moreover, in an in vivo design, the outcomes might be different owing to the presence of blood, saliva, and patient movements, they concluded. The study, titled “Evaluation of the accuracy of six intraoral scan- ning devices: Anin-vitro investiga- tion”,waspublishedinVolume10, Issue 4, of the ADA Professional Product Review. 7 TRIOS scans most accurate and consistent Study compares leading intra-oral scanning systems in terms of trueness and precision Dental4Windows now has wings Introducing D4W Cloud D4W Cloud gives you the freedom of having your practice management software online without having to sacrifice all the features of Dental4Windows that has made it the favourite choice of Australian dentists. All for one fixed monthly fee. Visit us at ADX16 on Stand 222 or go to and learn to fly. Stand 222 AD 5 3Shape’s intra-oral scanner TRIOS delivered the most accurate results when compared with other leading scanning systems in a recent study.

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