Full digital workflow for prosthetic driven implant planning and surgical guide fabrication without the need for scan appliance: a case report

A computer-assisted surgical guide is considered a state-of-art in modern implant dentistry because it increases the overall accuracy of the implant placement and fulfills the patient's esthetic and functional needs.This clinical report introduced the application of the double scan protocol without the need to use a radiographic scan appliance based on only the edentulous ridge.A cheek retractor was used to separate the cheeks and lips from the edentulous arch for the registration process between the CBCT and patient optical scans.Full digital workflow was applied for prosthetic-driven implant planning.Subsequently, a surgical guide was fabricated to place six implants in the maxillary arch.The outcomes indicated that the mean angular deviation of placed implants was 4.462.49.The mean coronal and apical deviations were 1.970.48mm and 2.540.92mm, respectively.This report represented a simplified method for surgical guide fabrication that could be applied to an edentulous maxillary arch.