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Article: Volume 48 Number 7 Page 592 - July/August 2021

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  Dental Update 491: 592-593

Technique Tips:  Making an open-tray implant or abutment-level impression technique easier

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Abstract: Various methods exist for taking implant impressions. The open-tray or pick-up impression technique is one of the conventional methods for transferring the impression coping from the implant to the impression. In this method, a window directly above the implant is made in a stock or custom tray to allow access to the impression coping. Traditionally, the window is either left open, or closed with melted wax or foil. This technique tip describes a modification to create a stable and secure seal over the opening using rayon-based adhesive tapes. The benefits of this modification over the conventional open-tray technique are due to the enhanced adhesive quality of the materials to metal or plastic. Because there is less chance of impression material leaking from the tray window into the mouth, it is more comfortable for patients and less messy for clinicians. The benefit of this method over the closed-tray technique is the ability to feel for the head of the impression coping at the same time as making sure the impression material is in good contact with the underlying structures. It is easy to use, and efficient in terms of time and cost.

Author notes: Javed Ikram, BDS, FDSRCPS(Glas), FDSRCS(Eng) DipRestDentRCS(Eng) DipOMFS(Manc),PGD(Orthodontics), Clinical Director Aesthetic Dental Solutions, Lytham St Annes, Lancashire. Nabeel Essa, BDS, GDP Aesthetic Dental Solutions, Lytham St. Annes, Lancashire. email: javed.ikram@icloud.com

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