This study aims to compare the trueness and precision of three impression methodologies photogrammetry, digital intraoral scanning with splinted scan bodies, and conventional open tray impressions in the context of the All-on-X treatment concept. This will provide valuable evidence for clinicians considering digital workflows for implant-supported prostheses. Does the use of photogrammetry and digital impression techniques with splinted scan bodies result in improved accuracy in implant position transfer in the All-on-X concept compared to conventional open tray impressions?
Adults aged 45-65 years.
Fully edentulous or partially edentulous maxilla requiring full-arch rehabilitation.
Sufficient maxillary bone volume to support at least four implants according to the All-on-X protocol.
Systemically healthy patients with no contraindications to dental implant surgery (ASA I-II classification).
Uncontrolled systemic diseases (e.g., uncontrolled diabetes, osteoporosis, immunosuppressive disorders)
History of radiation therapy to the head and neck region
Active periodontal disease or untreated caries
Maxillary cysts, tumors, or pathologies