Re: I would like to know the manufactures for the instruments used for

lj899 wrote:
On Oct 29, 9:58 pm, Mark & Steven Bornfeld
<bornfeldm...@xxxxxxxxxxxxxxx> wrote:
lj899 wrote:
I would like to know the manufactures for the instruments used for
dental laboratories: such as:
Bakecomb "Extra", Baketray, and Mesh tray etc.
I would like to get more informationabout the material composite and
product specs for those materials.
Thanks.
A lab would be better-equipped to tell you the good brands of lab
equipment. As far as composite resin, they are a class of acrylics--specifically
bis-GMA resin. The resin itself has significant mechanical shortcomings
as a restorative material, such as polymerization shrinkage and wear.
These shortcomings are ameliorated too some extent by the addition of
fillers--usually quartz particles, somemtimes glass. There are also
catalysts that promote polymerization, most of which now are
light-activated.
If you google dental resin or bis-GMA composite resin, I'm sure you'll
get links to many proprietary websites. Don't know how helpful they'll
be with particular specifics of the products. But most of these vary
only by degree--for instance the percentage of filler in the mix and the
size and shape of the filler particles.

Steve

--
Mark & Steven Bornfeld DDShttp://www.dentaltwins.com
Brooklyn, NY
718-258-5001

Hello Steve,
Thank you very much for your kind reply.
You are right that labs can have some helpful information.
I'll try to look for more explanations.
But when inthe furnace to sinter for instance the zirconia crowns or
brdges, the temperature will rise to about 1500 degrees C, how the
bakecomb in resin mateirals can stand such a high temperature?
Thank for your information.


I don't know what zirconia is made of--I presume it's ceramic, not resin.

Steve
.

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