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FAQ:  Implants

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Dental Implants Ask The Dentist Edward Leventhal Question:
Broken implant crown post: I have a loosened implant crown with a Zimmer post.

Xrays show the post has broken at about one third its length leaving two thirds remaining in the implant. Is there a procedure for removing the broken part of the post? ...Visitor from VT

Broken posts can often be backed out of the implant with a sharp explorer.

If that is unsuccessful, they can be drilled out.

If threads remain intact in the implant, another post can be screwed in.

If thread does not remain, a post must be fabricated and cemented into place with Metabond. A new crown must then be fabricated.

Additional Question:
Thank you so much for your reply. Since my Email to you about my broken dental implant crown post, there have been further disturbing developments.

The Xrays were sent to Zimmer who immediately called my Vermont dentist (I live in Florida and vacation in Vermont) and informed her that the implant itself is fractured. She told me they seemed to be quite upset about it. My dentist told me she had never seen anything like it.

I was told that when I return to Florida I should contact the Zimmer Representative about what to do. I am told the Zimmer Rep said that the implant is repairable and I will probably have to locate a Prosthodontist to make the repair and reinstall the crown and post.

Additional Answer:
A broken implant is rare but has happened. Whoever restores it must be sure to keep the crown out of occlusion in all excursions.

If there is no sign of infection, it is less hassle than removing and replacing the implant.

Edward Leventhal, DDS
Baltimore Cosmetic Implant Dentistry
8860 Belair Road
Baltimore, MD 21236
(410) 256-7300

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