Influence of material surface on the scanning error of a powder-free 3D measuring system

Clinical Oral Investigations
Michael KurzA Mehl

Abstract

This study aims to evaluate the accuracy of a powder-free three-dimensional (3D) measuring system (CEREC Omnicam, Sirona), when scanning the surface of a material at different angles. Additionally, the influence of water was investigated. Nine different materials were combined with human tooth surface (enamel) to create n = 27 specimens. These materials were: Controls (InCoris TZI and Cerec Guide Bloc), ceramics (Vitablocs® Mark II and IPS Empress CAD), metals (gold and amalgam) and composites (Tetric Ceram, Filtek Supreme A2B and A2E). The highly polished samples were scanned at different angles with and without water. The 216 scans were then analyzed and descriptive statistics were obtained. The height difference between the tooth and material surfaces, as measured with the 3D scans, ranged from 0.83 μm (±2.58 μm) to -14.79 μm (±3.45 μm), while the scan noise on the materials was between 3.23 μm (±0.79 μm) and 14.24 μm (±6.79 μm) without considering the control groups. Depending on the thickness of the water film, measurement errors in the order of 300-1,600 μm could be observed. The inaccuracies between the tooth and material surfaces, as well as the scan noise for the materials, were within the range of error for measuremen...Continue Reading

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Citations

Mar 24, 2016·Journal of Applied Oral Science : Revista FOB·Heike RudolphRalph Gunnar Luthardt
Nov 15, 2018·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Kyung Chul OhHong Seok Moon
Nov 15, 2019·Dental Materials Journal·Takashi Sawase, Shinichiro Kuroshima
Feb 6, 2018·Journal of Prosthodontic Research·Toshio ArakidaShunsuke Minakuchi
Jul 28, 2019·Clinical Implant Dentistry and Related Research·Ryan M MizumotoBurak Yilmaz
Dec 8, 2020·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Fatma Dilsad OzSimge Canatan
Mar 31, 2021·The Journal of Prosthetic Dentistry·Lucien DupagneBernardin Mawussi
Apr 10, 2021·The Journal of Prosthetic Dentistry·Hong-Taek JungJeong-Yol Lee
Jun 3, 2021·International Journal of Environmental Research and Public Health·Hyojin Heo, Minji Kim
Sep 21, 2021·Clinical Oral Implants Research·Vygandas RutkunasDarius Jegelevicius
Oct 6, 2021·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Jae-Hoon KimJeong-Kil Park

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