Implant Practice US takes a look at the ease-of-use offered by the Locator Bar Attachment from Zest Anchor

Indications

• Universal hinge, resilient attachment for bar splinted endosseous implants.
• Designed for use with overdentures or partial dentures retained by bar splinted endosseous implants in the mandible or maxilla.

Features

• Castable Delrin Threaded Insert to create threaded site in bar
• Low vertical height of only 2.5mm
• Self-locating design guides the proper seating of denture
• Long lasting performance with dual retention

 Please click on each thumbnail below in order to view larger image.

Threaded site preparation in the bar

1. The 2.0mm Castable Threaded Insert and a 2.0mm Bar Tap are used for creating the threaded site in a cast alloy bar.
   Survey and set a delrin Castable Threaded Insert into the wax pattern of the bar at each site
2. where a Locator Bar Attachment is needed. 
3. The delrin Castable Threaded Insert will become part of the cast alloy bar when the bar pattern is cast.
4. A special Locator Abutment Driver is designed to engage the threaded Locator Bar Female and thread it into the bar.
5. Final torque tightening of the Locator Bar Female is achieved using a torque wrench.

Denture cap placement

1. The completed bar is delivered to the patient and tightened into place on the implants with a torque wrench.
2. Place a Locator Impression Coping with Black Processing Male onto each Locator Bar Female.
3. Take an impression using a firm body impression material, exercising caution not to compress the soft tissue.
4. Snap a Locator Female Analog onto each Impression Coping in the impression.
5. Pour the master cast.  Upon separation, the Locator Female Analog is a part of the master cast replicating the position of the Locator Bar Female on the bar.
6. Before waxing and processing the appliance, place a Locator Cap with Yellow Processing Bar Male onto each Female Analog in the master cast.
   Set the teeth and wax the appliance.  Proceed with the processing technique of choice through the boil-out step.
7. After the boil-out, remove the Processing Cap Bar Male. 
8. Place a White Block-Out Spacer over the head of each Female Analog.
9. Re-insert the Locator Yellow Processing Cap Bar Male onto each Female Analog, leaving the White Block-Out Spacer beneath it.
10. Complete the processing and discard the white spacer.  Avoid damage to the final male by polishing the denture base before changing to the final resilient nylon male.

Change to the final male

1. Use the Locator Male Removal Tool to remove the Yellow Processing Male from the metal denture cap.
2. The Locator Male Seating Tool is used to firmly push a Locator Replacement Male into the empty metal denture cap.
3. A combination of color coded male retention liners can be used to achieve the desired overall retention of the prosthesis according to the needs of the patient.
4. Instruct the patient in the path of insertion.  Have the patient remove and insert their overdenture several times before dismissal.

Information provided by:
Zest Anchors, Inc. Zest Anchors, Inc.
2061 Wineridge Place
Escondido, CA  92029
800-262-2310