Implant impression techniques can be subdivided into indirect (transfer) and direct
(pickup) types.
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2
The direct impression technique requires a 2-piece impression coping with a removable
guide pin that screws directly into the abutment or onto the implant. An open-tray
impression technique allows access to the guide pin after the material has polymerized
so that the copings can be removed without disturbing their orientation within the
impression during removal from the mouth.To read this article in full you will need to make a payment
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References
- Contemporary implant dentistry. 3rd ed. Elsevier, 2007: 33
- Contemporary fixed prosthodontics. 4th ed. Elsevier, 2006: 406-409
- Accuracy of open tray implant impressions: an in vitro comparison of stock versus custom trays.J Prosthet Dent. 2003; 89: 250-255
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© 2010 The Editorial Council of the Journal of Prosthetic Dentistry. Published by Elsevier Inc. All rights reserved.
