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International Journal of Implant Dentistry
Fig. 3 | International Journal of Implant Dentistry

Fig. 3

From: Effect of assistive devices on the precision of digital impressions for implants placed in edentulous maxilla: an in vitro study

Fig. 3

Graphical representation of the overall workflow of this study. a Digital impressions were taken five times by all the intraoral scanners in each type. b Five conventional impressions with silicone impression materials were obtained, and working casts were fabricated. Five plaster models were scanned by a dental laboratory scanner, and STL datasets were generated. c The impression copings were connected to the reference model, and the plaster model was removed after the verification jig was fixed with self-curing acrylic resin. Five plaster models were scanned by a non-contact 3D measuring instrument, and STL datasets were generated. d All STL data sets obtained from each group were trimmed and confined to the images of the scan bodies

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