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Video Details
Clinical Success Rates of Ceramic vs PFM Restorations

Description:
Dr. Rella Christensen, a researcher at Clinical Research Associates (CRA) which publish Clinician’s Report, discusses recent findings of in depth studies comparing Zirconia to PFM to Alumina frameworks in restorative dentistry. Both CAD/CAM and Pressed ceramics are studied relative to their long-term clinical durability when compared to PFM restorations.

Date Added:
3/30/2010

Author(s):

Rella  P.  Christensen, RDH, PhD Rella P. Christensen, RDH, PhD
Dr. Rella Christensen co-founded Clinical Research Associates (CRA Foundation) in 1976, and for 27 years directed this well-known dental products testing institute. Su...
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Online Videos / Restorative / Crowns and Bridges / Clinical Success Rates of Ceramic vs PFM Restorations




Questions & Comments
Linda Winter92 - (3/16/2015 11:02 AM)

What is the current status of these bridges? Do you have a new update on all zirconia bridges that would help us in our decision making?

Sharad Gupta - (5/22/2012 10:13 AM)

keeping the anatomy simple for zirconia veneered ceramic is a very clever and gud tip.i appreciate
sharad

Hana Hasse - (4/4/2010 6:53 AM)

Good work. Please keep us up to date so that we can see if press ceramics give good reults after 5 and 10 years incorporated.

Danny O'Keefe - (2/20/2010 5:00 AM)

I would like to hear more from CRA, Rella on all of their research.

Danny O'Keefe - (2/20/2010 5:00 AM)

I would like to hear more from CRA, Rella on all of their research.

David Garber - (1/31/2010 7:33 PM)

Nallesh,
you are correct in that removing Zirconia crowns cemented to etched dentin substrate is extremely difficult and time consuming - - and they seldom if ever don't break during removal as you have to use a high speed and effectively have to grind them off in small pieces
- - - you do have a much better chance with pfm's but again it depends on the cementation
David

Matthew Giulianelli - (1/16/2010 12:48 PM)

The importance of supporting porcelain on zirconia frameworks cannot be overstated. I'm glad she brought this point to attention as many technicians are starting to hear about his more and more.

Ron Duffin - (12/11/2009 11:38 AM)

Good information... I would love to hear some studies comparing single unit performances of the various ceramic options

Ronald Goldstein - (1/17/2010 12:33 PM)

[quote=Nailesh Gandhi]I have listened to presentation by Dr. Rella Christensen, a researcher at Clinical Research Associates on topic on which is better - PFM ,Zirconia and Alumina.Lots of doubts have been cleared by her superb clear report.Such reports when presented is similar style gives instant benefits for clinicians.Please do continues with similar clinical presentations.I have to make one observation as regards to PFM and Zirconia.It is easier to remove PFM than Zirconia crowns as they may break during removal.I have not experienced such incidence so far but just an apprehension.If some one with more experience can enlighten us it will be great![/quote]

Somehow I missed your question, Nailesh, and want to give you an accurate answer so please let me have a bit more information: First, do you mean at try-in or after final cementation? and second, if final cementation, what are you cementing your crowns with (both PFM and Zirconia)? And third, how are you trying to remove your crowns?

Ronald Goldstein

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