Dentaltown October 2017 - 46
message board
a bunch of these. As for PFM, I almost never use it anymore. The weakest thing we use is the
porcelain that's layered on PFM. Also, unless you have a very good technician, esthetics with
PFM aren't very good. ■
6/20/2017
John Kanca
Member Since: 06/21/03
Post: 21 of 68
Have a look at these: keatingdentalarts.com/services/kdz-ultra. I have several zirconia
bridges going back a long time. ■
6/21/2017
mkfdds
Member Since: 12/10/10
Post: 24 of 68
IMHO. Just because a restoration is "in occlusion" does not mean that it is "good occlusion."
If you could post photos and/or models we may be able to help more. I have to say that (as I
have matured through my career) the more I look at how things could go wrong (the how and
why) as much or more than how I can make them better, my results have become much more
predictable and better. ■
6/21/2017
John Kanca
Member Since: 06/21/03
Post: 26 of 68
Ten-year recall zirconia bridge. ■
6/21/2017
almunk
Member Since: 12/17/05
Post: 28 of 68
PFM bridges have stood the test of time and can be quite aesthetic. A shoulder preparation
on the buccal with a butt porcelain margin yields very good aesthetics. For longer spans, it is
best to use a lot of metal in the bridge, but it can still be quite good esthetically. Here's one that
I did that has been on for about 35 years. ■
6/21/2017
rundoc
Member Since: 07/05/10
Post: 30 of 68
If there are severe forces. Maybe the ceramic won't break if it's super strong like BruxZir, but
the cement may fail or the tooth might snap under it or the opposing tooth might snap or you
take it out of occlusion and now the bicuspid snaps.
We get hung up on materials. All can work in the right circumstances and all can fail in
the wrong ones. Diagnosing the stresses and modifying them is all you can do. Might be more
important than the material you choose. Crossover interferences, missing back teeth, occlusion
on one side only due to TMJ issues, biteguard or not, age of the patient (decreased forces possibly), an opposing denture (decreased forces), an opposing implant (possible increased forces),
steepness of ant relationship, force vectors, habit trauma, plays in recreational hockey league in
Chibougamau without a mask. They all work and they all don't ... depending. ■
6/21/2017
46
OCTOBER 2017 // dentaltown.com
http://www.keatingdentalarts.com/services/kdz-ultra
http://www.dentaltown.com
Table of Contents for the Digital Edition of Dentaltown October 2017
Dentaltown October 2017 - Intro
Dentaltown October 2017 - Cover1
Dentaltown October 2017 - Cover2
Dentaltown October 2017 - 1
Dentaltown October 2017 - 2
Dentaltown October 2017 - 3
Dentaltown October 2017 - 4
Dentaltown October 2017 - 5
Dentaltown October 2017 - 6
Dentaltown October 2017 - 7
Dentaltown October 2017 - 8
Dentaltown October 2017 - 9
Dentaltown October 2017 - 10
Dentaltown October 2017 - 11
Dentaltown October 2017 - 12
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Dentaltown October 2017 - 18
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Dentaltown October 2017 - 20
Dentaltown October 2017 - 21
Dentaltown October 2017 - 22
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Dentaltown October 2017 - 28
Dentaltown October 2017 - 29
Dentaltown October 2017 - 30
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Dentaltown October 2017 - 34
Dentaltown October 2017 - 35
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Dentaltown October 2017 - 38
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Dentaltown October 2017 - 40
Dentaltown October 2017 - 41
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Dentaltown October 2017 - 46
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Dentaltown October 2017 - 60
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Dentaltown October 2017 - 63
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Dentaltown October 2017 - 100
Dentaltown October 2017 - Cover3
Dentaltown October 2017 - Cover4
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