Thread Retrieval Kit
A Thread Retrieval Kit can be obtained from Zimmer Dental and be used as an aid to remove broken screws. The kit includes a Thread Retriever latch bur and a Guide Sleeve. If the instruments are used properly, the fractured thread may be retrieved without damage to the internal threads of the implant body. NOTE: The guide sleeve that is included with the kit is specific to the implant type placed. You must provide Customer Service with the correct implant type to obtain the correct guide sleeve.
The Guide Sleeve is placed on or in(depending on the restorative table of the implant.) A hemostat should be used to hold the Guide Sleeve in place. The Guide Sleeve will center the Thread Retriever over the fractured thread. Insert the Thread Retriever into the hand piece and carefully place the Thread Retriever through the Guide Sleeve. Note: Due to the very small diameter tip of the Thread Retriever, it is essential that no lateral forces be applied. Keeping the Thread Retriever straight, apply moderate occlusal pressure and begin rotating in a counterclockwise (reverse ) direction at a speed between 35 and 50 rpm. Periodically remove the Guide Sleeve to clean any metal shavings from around the site using water or air with suction. After replacing the Guide Sleeve, continue applying moderate pressure rotating the Thread Retriever until it grabs the fractured screw and backs it out. If the internal threads of the implant body have been damaged, you may use a Thread Tap obtained from Customer Service to resurface the threads.
If further assistance is required, you can call Technical Services with your questions at 800-854-7019 or 760-929-4300.
|
