This document discusses terminology and techniques for dental implant impressions. It defines terms like cover screws, healing caps, transfer copings, and implant analogues. It explains that impressions are needed to capture the implant position, depth, axis, and soft tissue contour. The document outlines two main impression techniques - open tray (using pick-up copings) and closed tray (using transfer copings). It notes the advantages and disadvantages of each technique. Abutment level impressions are also discussed for customization and laboratory abutment selection. Gingival simulation is described as a technique to simulate the soft tissue around implants.

1. By
Sara Zaky

3. Terminology to know ..
 Cover screw
 Placed after insertion of the implant to prevent soft
tissues and debris invading the implant during healing

4.  Healing cap
 Temporary cover facilities placement of surgical pack
and healing

5.  Transfer coping
 Component used to transfer implant position from
patient’s mouth to impression
 Used to position die in the impression

6.  Direct transfer coping
 Type of extended screw used in direct impression
techniques …
 Usually square with extended central screw

7.  Implant analogue
 Replica component of implant’s body used in the
dental laboratory steps

9.  Why we should make an impression for dental implants
position Depth
Axis
Soft
tissue
contour

10. Impression
techniques
Implant level
impression
Open tray (pick
up coping)
Closed tray
(transfer coping)
Abutment level
impression
Direct technique
Indirect
technique

16. Open tray technique
Advantage :
Used with multiple implants
Reduce the effect of implant
angulation
Blind attachment
Movement of the screw during
impression taking may occur
Closed tray technique
Advantage
Suitable with decreased inter-
arch space
Decreased gaging reflex
easier
difficult to be used with non-
parallel implants
Human variation during
application

17. Abutment level impression
 For custom made impression
 For laboratory abutment selection

21. Gingival simulation :
 Technique used to simulate the shape or form of the
soft tissue around the implant and its abutment.
 Help the technician a d dentist to visulaize the soft
tissue surrondings

24. Thank you