Page 62 - CEREC Q3|2013
Basic HTML Version
60
|
cerecdoctors.com
|
quarter 3
|
2013
e share a sample of conversations occurring online:
udden sensitivity issues with e.max crowns. Could a
ocol? How common is this issue with other CEREC
is “sensitive” subject.
Selma Yucedal | Schenectady, N.Y.
I am having a lot of sensitivity issues with my
e.max crowns. Some come back so sensitive
that I cannot even touch the tooth to adjust the occlusion
without getting them numb. Is this a bonding issue? I was
using Voco products, but changed to NX3/XTR recently. It
seems like all my sensitivity issues are on molars, never on
premolars. If it is the bonding, why just molars? Thanks for
your help.
Rich Rosenblatt (Faculty) | Highland Park, Ill.
Likely an occlusion issue with e.max. They
don’t mark as well with articulating paper once
glazed. Use Vaseline on the articulation paper to help mark
the crown better. You can try something like Gluma, but I
would think that it is that you are missing the occlusion a
bit, especially in excursives.
Marc Thomas | Sparks, Nev.
The super-high glaze that we get with e.max
is the toughest material to mark that I have
ever used. Try the Trollfoil material. It is a bit thicker than
I would prefer, but it marks over-glazed porcelain really
well.
Bob Dawe | Granville, Ill.
And look at occlusal markings on the opposing
teeth. Although I am sure you have been bonding
crowns previously, be sure you have absolute moisture
control and follow the directions completely.
Kevin Potts | Dallas
My vote is that it’s probably an occlusion issue.
Marking freshly glazed e.max is as difficult as
perfectly polished gold. Another trick that can help is to run
a polisher on the occlusal of the crown. Do a minor reduc-
tion in the extreme glaze, and you get great marks. But, if
this is truly the case that it is occlusion, make sure little blips
on themargin are not causing a lack of complete seating due
to veneer-mode milling at those margins.
Selma Yucedal
I have been using the Vaseline technique and,
even after adjustment, they do not feel better. I
have two patients who state [that] it’s constantly throbbing.
I finally sent them to an endodontist after occlusal adjust-
ment did not give them any relief. The worst part is, I never
had this issue with PFMs, and I really want to get to the
bottom of it. It is stressing me and my patients out.
Mark Fleming (Faculty & Magazine Editor)
Scottsdale, Ariz.
If that is the case, give us your EXACT bonding
procedure. Hopefully we can help you out.
Renaissance Dental Center
Abernethy-Sonner-Wells | Raleigh, N.C.
My partners and I were having similar issues,
and our CEREC rep advised the following:
1. (We use Bluecam.) Rinse the powder immediately
and keep the tooth hydrated while milling. Ensure you are
