Impression Techniques for Implant Prosthesis

Accurate implant impressions are vital to ensure a passive prosthetic fit, preventing mechanical failures like screw loosening and biological complications like bone loss. Traditionally, conventional methods rely on elastomeric materials and are divided into two main approaches: the open-tray (pick-up) technique, which offers superior accuracy for multi-unit and divergent cases by embedding the copings directly into the tray, and the closed-tray (transfer) technique, which is ideal for single sites or patients with limited mouth openings.To capture the surrounding soft tissue accurately, clinicians use customized impression copings to replicate the emergence profile. Modern dentistry has shifted toward digital workflows using intraoral scanners, which utilize scan bodies to eliminate material distortion and improve patient comfort. For complex full-arch rehabilitations, photogrammetry provides precise digital coordinate capture, combining efficiency with unparalleled accuracy.