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Screw-Retained Implant Crown and Bridge Production

When clearance does not allow enough retention for a cement-retained implant restoration or the doctor requires retrievability, a screw-retained crown or bridge implant restoration can be made.

A PFM screw-retained restoration requires the use of a UCLA castable abutment, on which the plastic sleeve is adjusted and then waxed upon by our technicians. The abutment is waxed to include the ideal crown (or bridge) metal framework design to properly support the porcelain. Once waxed as desired, the abutment is cast, and then opaqued and stacked with porcelain like a standard PFM.

An all-ceramic screw-retained restoration requires the use of a titanium base designed for hybrid abutments. The crown (or bridge) is made using either full zirconia or layered zirconia, then cemented by the laboratory to the titanium base.

Screw Retained Dentures

PFM Screw Retained Crown & Bridges

A PFM screw retained restoration requires the use of a UCLA/castable abutment, on which the plastic sleeve is adjusted and then waxed upon by our technicians. The abutment is waxed to include the ideal crown (or bridge) metal framework design to properly support the porcelain. Once waxed as desired, the abutment is cast, then opaqued and stacked with porcelain like a standard PFM.

All Ceramic Screw Retained Crown & Bridges

An all ceramic screw retained restoration requires the use of a Titanium base designed for hybrid abutments. The crown (or bridge) is made using either full zirconia or layered zirconia, then cemented by the laboratory to the titanium base.

Ceramic Screw Teeth

protocol for full arch screw-retained zirconia bridge

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Screw Retained Full Arch Restorations

Screw-retained full zirconia bridges are fabricated from a single piece of zirconia. Only the nonfunctional tissue areas are layered with porcelain to achieve a natural tissue appearance. Once an accurate bite registration is taken and verification jig confirmed, we will fabricate a wax setup for try-in and approval. At that time, the esthetics and function are approved or changes are requested. Upon approval, the screw-retained full zirconia bridge is milled, stained, and sintered, the porcelain is applied to the tissue areas, and then the entire bridge is further characterized with stain. Upon completion, the titanium inserts are cemented inside the bridge and titanium abutments are provided with the bridge for delivery.


Etiology, Management, and Prevention of Loose Implant Abutment Screws

Abutment-screw loosening has been shown to be the most common dental implant prosthetic complication. Read the article at right for more information about the causes and prevention, as published February 22, 2018, by Dr. Randolph R. Resnik in Dentistry Today®.

protocol for full arch screw-retained zirconia bridge

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ceka bond

We recommend Ceka Bond, by Preat Corporation, to help prevent the loosening of screws for implant and attachment cases. You can purchase Ceka Bond by clicking the following link:

https://preat.com/shop/attachments/ceka-bond-adhesive/

Closed and open tray impression techniques

Please find the below closed and open tray impression techniques for implants, courtesy of

Zimmer logo
Regarding step 6 of the closed tray technique, you do not need to place the indirect transfers (impression copings) into the impression prior to sending it to us. If you send the transfers separately in a plastic crown box or in a sealed pouch, we will place them inside the impression under our microscopes to ensure accurate and precision placement.

Types of dentures

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Contact our team today to find the right solutions.
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