Ball attachment for overdenture?
I have a new patient who presented with this implant. I would like to use it to hold a ball attachment for an overdenture. It was installed over 10 years ago. The implant is well osseointegrated without complications. Can anyone identify this implant system? Can I use it to put a ball to retain the denture?
9 Comments on Ball attachment for overdenture?
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Guy Carnazza DMD
9/22/2014
It looks as if prosthetic screw might have fractured. Appears to be remaining in implant body. WHATIMPLANTISTHAT is a good website to help id. Good luck.
Matteo
9/23/2014
Thanks a lot! I know this site and I will try. Anyway will be hard to remove this
screw I think. But I think will be harder and heavier for the patient remove the fixture...
Stanley
9/23/2014
Depending on the implant system, of course, it is not that difficult to remove a fractured screw. The idea is to use the principle of the reverse drill/torque, as developed by Niznick in the 90's and as described by Dr. Stuart Froum: “Techniques to Remove a Failed Integrated Implantâ€, Compendium September 2011, Volume 32, No. 7, Pages 22-30. Froum's article refers to a failed implant, but the same reverse drill technique can be used for fractured screws, as well.
There are several kits now on the market now that have special reverse threaded tools and guides to help remove a fractured or broken screw.
As mentioned in a previous post, I recommend the Mr Curette (MCT) kit. It’s the same principle as the other kits, but the MCT removal kit is simpler to use and is 1/3 of the price, as you get 2 kits in one, i.e. instruments to remove fractured implants, as well as, failed implants. You can buy both the fixture removal and the fractured screw removal kits as one complete kit at DDSGadget.com.
mpeDDS
9/23/2014
If planning on a ball attachment pay close attention to your inter-occlusal space. These need about 9mm between the gingival crest around the implant and the base of the denture teeth. If you do not have this amount of thickness in your acrylic then the denture is likely to fracture in this area or wear through and expose the attachment. There are lower profile attachments available for limited inter-occlusal space.
Tuss
9/24/2014
Assuming there is a second implant and you are not relying on just a single implant to retaine the denture, if so the implants must not be more than 10 degrees divergent or the ball abutments will not work properly and you will have repeat complications with loss of retention and damage to the ball
matteo
9/24/2014
thx to everybody. From your comments I understood is better not use and leave this implant sleeping. maybe if someone can say me the type of implant i can buy just a healing cap to make a cleaner work. Thx anyway !
Raul Mena
9/25/2014
Tuss is correct, there should not be more than 10 degrees divergent.
If there is another implant present and you can not remove the screw
you may want to do a custom 0-Ring abutment for this case.
Very simple to do.
Raul Mena
ttmillerjr
10/14/2014
Best guess is Branemark MK III
Richard Hughes, DDS, FAAI
10/14/2014
Dr Mena,
Could you tell us how to fabricate a custom ball abutment. Some of us have these cases from time to time.
