Temporary Cement for Implant Supported Bridges?

Anon. asks:
What temporary cement should I use to make it possible to retrieve a cement retained bridge? Most of the bridges I do are just 3-units – anterior and posterior implant abutments and a central pontic. I really do not want to cement these permanently because I have seen porcelain fracture or implant failures. I do not like the idea of using screw retention because my patients will not accept the aesthetics. I have heard ImProv and Temp Bond [Kerr] are the most widely used. I do not want the bridges coming off but I do want to be able to retrieve them. Any ideas?

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9 thoughts on “Temporary Cement for Implant Supported Bridges?

  1. I tried using tempcem (eugenol free tempy cement) and to my dismay pt keeps coming back every 2 months. Thts a good idea if you want to review pts every 2 months :). Now I use zinc phosphate cement with good sucess

  2. for temporary cementing i use corrently since many years,this composition: eugenol plus Cavit and eventually vaseline to conditioning the duration of temporary cementation.

    I think this is the best solution and the more economic you can found.

  3. Improv was designed as a “provisional” implant cement. It is basically a eurethane cement with 18% teflon added to reduce the shear strength. It is insoluble in oral fluids and has a 20 micron film thickness. Making it the ideal implant cement. If used as directed by the manufacturer (these directons include painting the inside of the crowns with vaseline)it performs beautifully. One must be extremely careful to remove all the excess as it can cause bone loss if left in contact with bone. I suggest placing retraction cord in the sulcus during cementaton and taking a post op xray (it is radiopaque. I’ve used it now since it first came on the market over 10 years ago.

  4. Temp Bond cut with Vaseline (about 25% by volume). If that comes off (less than 5% of the time in my office), then I go with straight temp bond with no Vaseline. If that would come off (and it never does) I would go with dycal. I have had to endo access crowns to get to the screw that were cemented with temp bond alone. So use the weakest cement that does the job. It all comes down to how parallel the abut is. Most custom abuts from the lab have only a 2 degree taper. It does not take much to hold it on if has only a 2 degree taper. If using a prefab abut that is not very parallel will need stronger cement. Hope this helps.

  5. We use premier implant cement,for years now, vaseline lightly covering the interior of the crown… just beautiful, and actually one can retrieve the crown or bridge without the usual trouble. a good post op xray is mandatory.

  6. My thoughts are that the castings should fit a properly prepared abutment. That means that the lab needs to make the castings directly on the abutments and that whoever is prepping or manufacturing the custom abutment, attention needs to be paid to retention and resistance form in the prep. The castings need to fit the abutments correctly ie: should have some degree of resistance relative to its length. Lastly the occlusion needs to be properly equilibrated. This will keep it in, now as for removal, this can be tricky. If the abutment stays tightened it will be removable. If the abutment screw comes loose it is another story. One thing I have been able to incorporate is a grove extending from the gingival margin to the occluusal aspect on the lingual of the abutment. A corresponding notch is placed at the margin in the crown. This design will allow for instrumentation to be inserted and removal accomplished.

  7. I have used all the various provisional cements in past with varying degrees of success. The problem with TempBond (+/- modifier) is with film thickness. Improv and the like become very tenacious with time. One suggestion is to never use a ‘definitive’ cement. For the last three years (on single and multi-units) I have used ImplaTemp (from Swiss Quality aka Renzo Castellini). Easy to clean and retains restorations which i can remove when required.
    Dr Dwayne Karateew
    DDS, Dip Perio, Dip Prosth

  8. Is Temp cement by Citrix a good choice to cement crown to implants.I am afraid to use Improv because of possible bone damage.
    I am doing this myself at home.Pl advise what brand I can use.There are so many,itis confusing.I have 5 implants supporting a single crown with holes in them to receive implants.Thanks.

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