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Medicine and Health Sciences

2017

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Accuracy Of Full-Arch Scans Using Intraoral And Extraoral Scanners: An In Vitro Study Using A New Method Of Evaluation, Jonas Muallah, Christian Wesemann, Roxana Nowak, Jan Robben, James Mah, Peter Pospiech, Axel Bumann Jan 2017

Accuracy Of Full-Arch Scans Using Intraoral And Extraoral Scanners: An In Vitro Study Using A New Method Of Evaluation, Jonas Muallah, Christian Wesemann, Roxana Nowak, Jan Robben, James Mah, Peter Pospiech, Axel Bumann

Dental Medicine Faculty Publications

The aim of this study was to compare the accuracy of six intraoral scanners as regards clinically relevant distances using a new method of evaluation. An additional objective was to compare intraoral scanners with the indirect digitization of model scanners. A resin master model was created by 3D printing and drilled in five places to reflect the following distances: intermolar width (IMW), intercanine width (ICW), and arch length (AL). To determine a gold standard, the distances were measured with a coordinate measuring instrument (Zeiss O-Inspect 422). The master model was scanned 37 times with the following intraoral scanners: Apollo DI …