Implant Crown Removal: Any Recommendations?

Dr. L. asks:
I tried to retrieve an implant crown I cemented on a stock abutment using a rubber tipped pliers. I could not budge the crown. I had lubricated the abutment and the inner surface of the crown with Vaseline. I used TempBond [Kerr] which I have been using for years on natural teeth. My question is why can I remove temporarily cemented crowns cemented with TempBond off natural teeth with no problem but cannot remove crowns cemented on implant abutments? Maybe I am not using enough force? Does anyone have any recommendations on what to do? Should I mix some Vaseline with the TempBond? I am just worried about the crown or bridge coming off.

7 Comments on Implant Crown Removal: Any Recommendations?

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Tyler
4/26/2011
Mix the temp bond with vaseline or other lubricant and only paint a small line, usually on the lingual intaglio when you actually want to "temp" bond implant crowns. Due to the extremely accurate casting temporary cement in these cases can prove to be very difficult to break the bone of. I've seen crowns cemented with temporary cement stay solid for 10 years in implant cases.
B
4/26/2011
Try using Richwil wax. It's available form Henry Schein the last time I checked. Warm it up under some hot water and get the patient to bite into it. Wait a few moments until it hardens and get the patient to open. It usually does the trick. Good luck
Carlos Boudet, DDS
4/26/2011
Assuming the crown is fine and you want to remove and recement it is commendable, but I prefer to treat single units as regular crown and bridge and cement them with a final cement. I would suggest you consider a radioopaque cement to avoid periimplantitis due to inadvertent cement left subgingivally. One more comment about the richwill jujube: Make sure there are no crowns or large restorations opposing the crown you want to remove, or you may get the opposing restoration off instead. Good luck!
JAV
4/26/2011
Retrievability is the key with any crown placed on an implant. Soft Cements allow us the ability to remove a crown from an implant abutment and repair or replace the crown. Don not cement the crown with permanent cement you will never get it off without destroying the abutment.
DR. M.Ali DDS, MS
4/26/2011
DR.L. Cementation of implant crown is an important issue .Starting from fitting the crown to the abutment and trying the crown for retention ,to have the selected type of cement.Cementation of an implant supported crown is usually done by temporary cement . Restorative dentist should design the crown to be easy to retrieve by having a lingual box in the Metal frame of the crown and the abutment . In that box a hand instrument having a tip to fit to that box , by twisting that instrument, the crown will come off. Now I have to ask ; why You want to remove that crown?? is it becouse of the abutment is getting loose ? or just to try to remove it . If you don't need to remove it urgently , You can leave it and instruct the patient to eat on it , use it for a while till It gets loose ,then you can remove it easier . If you don't plan to use the lingual box, soft cement is used or you can have Vaseline to the ordinary temporary cements. The crown should not have any movement after any type of cement. Good luck from DR.Ali DDS,MS New York
David Nelson DDS
4/27/2011
Like Dr. Boudet I prefer a permanent cement. I had used a "Temporary Implant Cement" and guess what, the crown came off, unpredictably. After having a few patients come in crown in hand, I thought enough already, at least they didn't swallow it. Torque abutments with a calibrated torque wrench, use custom abutments with all zirconia "bruxZr" in the posterior regions and you can sleep very well and not have to revisit your work.
ian
4/11/2012
can i get crowns removed from abutments and bridges all in my upper jaw i have had them in five weeks and find the colour is not what i like as they look yellow i know i will have to pay again will the cost be less as all the casts are made ect or will i have to live with my bad decision

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