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1 Surgery CAMLOG Compendium

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Transfer System<br />

Open Impression Method<br />

Open Impression<br />

Method<br />

An individually fabricated impression<br />

tray is required for the open impression<br />

method. On the extension of the implant<br />

axis, the individual impression tray must<br />

be perforated to allow release of the fixing<br />

screw of the impression post.<br />

System Components<br />

The system components for the open<br />

impression method are color-coded. The<br />

fixing screw is secured with an O-ring.<br />

The fixing screw must be hand-tightened<br />

only, both in the implant and in the lab<br />

analog.<br />

Before removing the impression, loosen<br />

the screw and pull it back until the stop<br />

(O-ring) is felt. Otherwise, removal of<br />

the impression will be impossible due to<br />

axial divergence of the implants, or the<br />

impression itself will be deformed<br />

through excessive compression.<br />

The fixing screw is equipped with a<br />

break-off point and it can be shortened<br />

by 3.0 mm by breaking it off with a<br />

screwdriver if space limitations are<br />

encountered.<br />

Caution! Shorten extra-orally only.<br />

144<br />

Screwdrivers,<br />

extra-short, short, long<br />

Overview of color-coded impression posts<br />

Impression post<br />

Lab analog<br />

O-ring O-ring

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