Locator Implant AttachmentPREAT Corporation
Locator Implant Abutment Instructions
The Locator Implant Attachment System is designed for use with overdentures or partial dentures, retained in whole or in part by endosseous implants in the mandibular or maxilla.
Not appropriate where a totally rigid connection is required.
All components and instruments are supplied NON-STERILE. Implant abutments and metal instruments may be sterilized following standard clinical procedures prior to use.
- Locator Males: The inadvertent re-use of Locator nylon males could cause loss of retention for the overdenture due to wear from previous use or damage during removal with the Locator Core Tool.
- Locator Abutments: The inadvertent re-use of Locator abutments could contain patient contamination build-up and subsequent wear of the retention bands. This would result in the device to perform with improper fit and function which would result in loss of retention for the prosthesis.
Lowest Vertical Height: The total height of the lowest Locator Attachment (abutment plus male) is only 3.17mm on an externally hexed implant, and 2.73mm on a non-hexed implant.
Locating Design: Self Locating design allows a patient to easily seat their overdenture without the need for accurate alignment of the attachment components.
Retention inside and outside: The unique Dual Retention innovation provides the LOCATOR attachment with greater retention surface area than ever before available with other attachments. A combination of inside and outside retention ensures the longest lasting performance.
Use with non-parallel implants: Angle correction nylon inserts allow easy correction of divergent implants.
Rotational pivoting action: The design of the pivoting LOCATOR male allows a resilient connection for the prosthesis without any resulting loss of retention. The retentive nylon male remains completely in contact with the female socket while its metal denture cap as a full range of rotation movement over the male.
Locator Tool #8393
Locator Implant Abutment
Impression Coping #8505
Male Processing Package #8519
Extended Range Male Processing Package #8540
Female Analogue #8530
Placement of the Locator Implant Abutment
Locator Male Placement by the Dentist
Alternative Technique Using the #8569 Processing Spacers
The #8569 Processing Spacer is designed to create the exact space in the denture to allow ease of Dentist chairside pickup of the Locator Cap Processing Male.
In the normal processing of the denture base, before waxing and processing, place the Processing Spacers over the LOCATOR® Female Analogs in the master cast.
- Set the teeth and wax the appliance. Proceed with boil-out technique. When the denture is complete, the spacers can be removed with the Locator Core Tool
- Place the Locator Core Tool, Male Removal End into the Processing Spacer cavity just as if you were going to remove a nylon male, but instead of pulling at an angle, pull straight up with the Core Tool, to remove each Processing Spacer.
- To discard the processing spacer from the tip on the Core Tool; point the tool down and away from you and tighten the Male Removal Tool clockwise back onto the Core Tool. This will activate the removal pin and dislodge the Processing Spacer from the tip end of the Male Removal Tool.
Locator Male Placement by the Laboratory
In the Operatory:
Option A: Using the Impression Copings
Option B: Using the Metal Housings instead of impression coping
In the Laboratory:
Good oral hygiene is vital to implant success. The Locator Implant Abutment must be thoroughly cleaned daily. The use of a soft nylon bristle or end-tufted toothbrush, and superfloss to polish the abutments should be taught. A non-abrasive gel toothpaste, and an irrigation system is recommended to keep the socket of the Locator Abutment clean.
Soaking the overdenture is not recommended. For patients who soak their dentures, eat a very gritty diet (salads, spinach, etc), or have health issues (like acid reflux), please instruct the patient to brush the attachments with mild dish soap and water. This will keep the nylon attachments smooth and reduce excessive wear on the implant abutments.
Patients should maintain a three to four month recall for cleaning and implant evaluation. Replace nylon males if they have a build-up of abrasive calculus; this will cause premature wear on the implant abutment. Check for a reline; a relined prosthesis provides prosthesis stability and reduces the wear on the attachment.
The sulcus area around the implant abutment is a primary area of concern. Use plastic instruments for scaling the abutments. Do not use metal instruments which may create scratches on the abutment surface. Examine patients for signs of inflammation around the implant abutments, and for implant mobility. Use the Locator Abutment Driver to make sure the Locator Implant Abutment is tight before dismissal.
How to change the Locator Male
- The Locator Core Tool, which contains a Locator Male Removal Tool and Locator Male Seating Tool, is used to remove the existing nylon male from the metal denture cap and replace it with a new Locator Replacement Male.
- Use the Male Removal Tool to remove the nylon male from the denture cap.
- The Male Seating Tool is used to firmly push a Replacement Male into the empty metal denture cap. The replacement male must seat securely into place, level with the rim of the cap.
NOTE: The replacement male will not stay on the tool when it is turned upside down due to the varying sizes of males available. It is best to hold the denture with the base side down and snap the male into the metal denture cap.
Reline and Rebase
- Remove each existing nylon male from its metal denture cap following the steps in “How to Change the Locator Male.” Replace them with Black Processing Males. The built in spacer of the Black Processing Male will maintain the overdenture in its upper level of vertical resiliency during the reline process.
- Take a reline impression using the existing overdenture as a tray. The Black Processing Males will engage the Locator Implant Abutments and hold the prosthesis in place while the impression material sets.
- After the impression is withdrawn, snap a Locator Abutment Analogue into each Black Processing Male and pour a master model.
- Process the reline following the same steps as outlined in “Locator Male Placement by the Laboratory.”
- After processing the reline and polishing the denture base, replace the Black Processing Males with the final Locator Replacement Males.