Purpose: The aim of this study was to evaluate the feasibility and accuracy of using an
intraoral scanner to digitize edentulous maxillectomy defects. Materials and Methods:
A total of 20 maxillectomy models with two defect types were digitized using cone beam
computed tomography. Conventional and digital impressions were made using silicone
impression material and a laboratory optical scanner as well as a chairside intraoral scanner.
The 3D datasets were analyzed using 3D evaluation software. Results: Two-way analysis
of variance revealed no interaction between defect types and impression methods, and the
accuracy of the impression methods was significantly different (P = .0374). Conclusion:
Digitizing edentulous maxillectomy defect models using a chairside intraoral scanner appears
to be feasible and accurate.