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PROSTHETIC PROCEDURE
This page guides you through the Prosthetic and Precision Laboratory procedures but retains the main focus on the Method Laboratory handling procedures. Therefore a more detailed Prosthetic procedure is needed for the Prosthodontist.
Cresco API™ components used in this section:
- Impression Element (Impression Pin included)
Impression procedure
Install the implant and prepare for the impression procedure or remove the healing abutment or temporary restoration after the healing period, and prepare for the impression procedure.
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1. Prepare a rigid impression tray, preferably a customized tray, with space for the Impression Element without interfering with the tray.
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2. Grip the Impression Elements with a straight forceps and place them on top of the restorative platform. Insert the Impression Pins and tighten using a cap screwdriver with light finger force. The cap screwdrivers can be effectively utilized at an angle deviating up to 15 degrees.
X-ray examination can be used to determine positional integrity.
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3. Try in the impression tray. Ensure that the tray, delivered from the dental technician, gives a secure fit and can be inserted without interfering with the teeth and the Impression Elements. Make sure that the Impression Pins can penetrate the tray without interference.
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4. Cover the prepared hole in the impression tray with a thin sheet of wax.
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5. Apply a suitable adhesive to the impression tray.
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6. Fill the impression tray with elastomeric impression material.
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7. Inject the elastomeric impression material around the Impression Elements.
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8. Place the tray filled with impression material intraorally.
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9. Localize the Impression Pins immediately after positioning the tray. Make sure the top of the Impression Pins goes through the wax sheet, in order to give access the pins for unscrewing after the impression material has set. Allow the impression material to set according to the impression material manufacturer’s instructions.
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10. Unscrew the Impression Pins after the impression material has set, using a suitable slot screwdriver. Make sure that the Impression Pins are completely disengaged from the restorative platform before lifting the tray.
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11. Remove the impression tray. Ensure that the impression is correct and acceptable. The impression, with the Impression Elements embedded, is delivered to the dental technician, together with the Impression Pins and the laboratory components in the Cresco API™ Kit.
The dental technician undertakes the master model fabrication, the framework fabrication, the relational transfer and the precisioning. The handling procedures are carried out by the Method Laboratory and the Precision Laboratory. Sometimes all the procedures are performed at the same laboratory.
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