3D Accuracy of a Conventional Method Versus Three Digital Scanning Strategies for Completely Edentulous Maxillary Implant Impressions.

Purpose: To compare the 3D accuracy of three scanning strategies and conventional impressions using an edentulous model with six implants.

Materials And Methods: An edentulous maxillary master model was fabricated with six equigingival internal connection implants at 0 degrees of angulation. Ten conventional open-tray splinted implant-level impressions were made and poured in stone.