Ankylos implants placed approx. 2007. These implants have no hex or spline, only a taper. They have a 15 year history of loosening and broken screws- #8 has a broken screw in it now. They have always been restored as individual crowns. Would splinting the crowns help? That’s the only thing I can think of to do differently but I’m not sure it addresses the problem.
Difficult to tell for sure but it appears that #9 is fractured at the collar. I have never utilized Ankylos but make sure that genuine OEM parts are being used because I have found that recurrent prosthetic complications on otherwise well place hardware is usually a function of generic components.
There are problems with prosthetic fitting( left crown is not good at all) , implants themselves are one s of the best … 4.5 might be broken collar side or these are grooves of old implants…
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Since I don’t have any experience with Ankylos I have been looking looking into their product trying to figure out what it is that looks like a fracture at the top of each of these fixtures. At first glance it looks like fractured fixtures and that would explain the frequent loosening of the restorations over the years. I assume #7 is also Ankylos and it doesn’t have any evidence of an irregularity at the neck so I am leaning towards fractured fixtures as the culprit. Just my opinion from the images and as someone with zero working knowledge of the particular product being used…
Thank you- I’ll get to see the top of the fixtures when I do the gingivectomy to expose them.
Scotty non oem parts is what this dentist should be using since ankylos has a screw that cannot be removed from the abutment which reeks havoc when trying to replace them. DESS has ankylos abutments with a removeable screw which is what you want. The ankylos should have an engaging part in the implant interface however the abutment you removed may have been non engaging which required a jig to seat properly. Avoid those at all costs. The abutments are indexed.
Another option would be to put the fixture in the middle, the one with the broken screw, to sleep or remove it and do a implant retained FPD. Wouldn’t the broken Ankylos screw still have to be removed in order to use the DSS components??
Yes the screw would have to be removed if they choose to restore this implant.