Technique Using a Novel Verification Guide for Complete Seating of Open-Tray Impression Copings.

The purpose of impression-taking is to attain the accurate transfer of intraoral information for extraoral use. It is a crucial step in performing a successful dental implant restorative procedure. To accurately replicate the implant position for adaptation of an abutment that will completely engage with the implant, a pick-up impression is taken with an impression coping. Several factors can affect seating of the impression coping, including soft-tissue interference, the size of the impression coping, angulation, proximity or contact with adjacent teeth, damage to the coping, misfit caused by use of other manufacturers' parts, and differences between seating in an external- versus internal-connection implant. This article presents use of a novel verification guide that is intended to ensure complete seating of the impression coping with the implant.