Dental Implants: Cementation

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What has been your experience with cementing crowns and bridges on implant abutments?

We have had some problems with resin and glass ionomer cements. They may be strong, but it can be very difficult to remove the excess.

Most of the implant companies advocate permanent cementation because they say the problems with screw loosening is now a thing of the past. So possibly there is no need to use temporary cement.

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9 Responses to “ Dental Implants: Cementation ”

• Dr.Ejaz Khawer khawaja October 3rd, 2005

  
  

  according to my experience one should go to the glassinomer or polycarboxylate , both are good for cementation.

• hm October 4th, 2005

  
  

  I still don’t think you should never use permanent cement for implant crown cementation. Screw is made to be losen.
  I don’t use screw retained system any more.

• Anonymous October 4th, 2005

  
  

  Regardless of the depth of the implant, if one chooses to have their lab fabricate a custom abutment the margin of of the crown can be placed just below the gingival crest where excess cement removal is easier.

• Anonymous October 4th, 2005

  
  

  I think that there are indications for both and anyone who says”I do not use screw retained restorations” hssn’t been experienced enough to resllize that retrievability cannot always be achieved with permanently cementerd restoraions.

• Anonymous October 5th, 2005

  
  

  has anyone used the implant restoration known as the IAC (integrated abutment crown)that does not use screws or cement?

• Dr. Gerald Rudick October 6th, 2005

  
  

  How to deliver the final prosthesis is a question without a definate answer.
  When dealing with dental implants, the key word is “retrievability”

  There is no certainty that a crown cemented on an implant abutment that has a screw or morse taper to retain the abutment will loosen.

  There is no guarantee that a permenent crown cemented with temporary cement will easily unfasten when you try to separate it.

  Plan in advance where the retaining screw under the permanent crown can be accessed, by placing a mark in the porcelain, so that if need be , a hole can be drilled through the cemented crown, and the abutment released……outside the mouth, the application of heat will break down cement.

  Do not attempt to tap too vigorously on an implant supported crown……..you will possibly fracture the screw,fracture the abutment,fracture
  the implant body, or at worst….extract the implant….. good luck

• Anonymous October 6th, 2005

  
  

  Nobody worries about retrievability with crowns on natural teeth. Implants don’t need to be treated much differently. That being said, I usually do prefer provisional cement just in case the screw loosens. I have of course had the situation where I could not remove a crown cemented with temp bond and had to cut it off. So, I guess you have to go woth your gut feeling on this one. Probably a non-setting cement such as tempo-sil would be great fofr a couple fo weeks, followed by vaseline plus temp bond. Then decide where to go next

• Kathryn Allen CDA November 21st, 2005

  
  

  Does anyone know of a permanent cement remover for in the mouth??

  Thank You!

• Dana January 24th, 2006

  
  

  How much cement should be used to place a crown in an implant? If you experience a severe infection and cement has to be surgically removed, is the dentist who placed the crown at fault?

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Wed August 20 2008

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