A tray-less impression technique: An alternative to open-tray or closed-tray impression techniques for complete arch...

Digital scanning techniques have offered clinicians a faster and more patient-friendly treatment workflow. However, the fabrication of a definitive prosthesis often necessitates a physical cast to ensure precise verification. While 3-dimensionally (3D) printed casts provide excellent accuracy, introducing laboratory analogs to these casts can result in subtle discrepancies that compromise the definitive prosthesis. This underscores the continued relevance of traditional impression methods, which remain the standard for achieving accuracy in complex clinical scenarios. This article presents a tray-less impression technique as an innovative hybrid approach, merging the precision of traditional impressions with modern digital efficiency. By using a 3D printed verification device, such as S-Plates, and a combination of polyvinyl siloxane (PVS) putty and light-body impression materials, this method delivers a straightforward, yet reliable, workflow. It minimizes procedural challenges while maintaining the accuracy required for complete arch, fixed implant-supported restorations.