Ceramir: Biocompatible, Insoluble, Resistant to Degradation

Author : Dental Product Shopper
Published Date 07/30/2012
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Ceramir: Biocompatible, Insoluble, Resistant to Degradation

One question I am frequently asked about is which cement is best for fixed crown and bridge. As a product evaluator, this is a difficult question to answer. Perhaps a better question would be: Which cement do I prefer? The honest answer is: I prefer the cement that is the easiest to use, the easiest to clean up, eliminates sensitivity, sticks like an angry buffalo to tooth and substructures, and finally, one that helps resist future invasion of any type of pathogen. I want a cement that is biocompatible, insoluble, and resistant to degradation.

The Bigger Picture

That being said, we need to step back and look at the bigger picture. We have been luting inlays, onlays, crowns, and various types of bridges for decades with a tremendous amount of success. We have used zinc phosphate, polycarboxylate, glass ionomer, resin, and resin modified glass ionomer cements successfully. If you look at the failure rate of indirect restorations historically, it is actually quite low.


More recently, in our attempts to make our businesses more profitable and less stressful, many dentists have ignored the principles of the past masters of dentistry. We have ignored preparation design to make our preparations quick and simple. We then rely on our cements alone to retain our prosthesis. Ideally, we would have a good preparation design combined with a good luting agent.


Rapport is Key

We use many types of adhesives and cements to lute an indirect prosthetic to a tooth in very challenging situations. For example, a recently fractured tooth required me to prepare a second molar that had 5 mm of crown height due to exostoses, resulting in a short clinical crown. In situations like this, it helps to have a good rapport with your cement as well as the ability to prepare with ideal taper. We could have done crown lengthening surgery to make it easier for me, but my patient had limited resources and even doing a crown was a stretch. Sometimes we just have to do what we have to do.


Ceramir: An Excellent Option

In that light, one of the more recent cementation products available to us today is a bioactive material containing calcium aluminate and glass ionomer components, Ceramir from Doxa. Studies have been consistently favorable with regard to biocompatibility, sealing, retention, and dimensional stability. In fact, in the presence of phosphates, this cement has the ability to create apatite, which makes it in essence a self-sealing/repairing material. I can use it with confidence, knowing that the bond is very high and its physical properties are excellent. Simply mix and apply to the tooth. No bonding steps are necessary and it hydrophilic properties work very nicely in the oral environment and on dentin.


I have found this cement to be very easy to clean up. It has a good film thickness and excellent marginal integrity. Combine these features with its biocompatibility, self-sealing nature, and a lack of sensitivity, and I'm confident Ceramir is an excellent option