Emax cad ie; blue blocks

[Pronto]

Anyone using them? My boss is afraid of the getting shades with unfired color being so strange. How do you guys deal with that?

[Al.]

Originally Posted by Pronto

Anyone using them? My boss is afraid of the getting shades with unfired color being so strange. How do you guys deal with that?

Thats the block of choice for Cerec Drs now, I doubt there are problems with the shade.

How much do the blocks cost?

Emax milled is 360 mpa pressed is 400mpa.

[DMC]

Originally Posted by Al.

Thats the block of choice for Cerec Drs now, I doubt there are problems with the shade.

How much do the blocks cost?

Emax milled is 360 mpa pressed is 400mpa.

Is that true? (I guess so or you wouldn't have said it?)
What about milled on the Roeders?
Anyone try Diadem yet??
I'm thinking they opened a few days ago.
(My wife was teasing me last night, and I got some serious blue blocks going on)
I want a DMG Ultrasonic 20 mill to whittle down the blue ballz fast and smooth.

Industrial-strength partner - DentalProductsReport.com

[Al.]

Here it is, just put put you curser on the block and it puts up all the stats.

Ivoclar Vivadnet | IPS e.max | technical data

[sixonice]

Originally Posted by Pronto

Anyone using them? My boss is afraid of the getting shades with unfired color being so strange. How do you guys deal with that?

Yep, I have used em'. Not a problem...all it is, is un-crystallized Lithium Disilicate in it's "raw" state. The reason it is in the raw state is to make it easier for the milling machine to mill (at 150 Mpa). Milling this material after it is crystallized (at 360 Mpa) would result in lots of milling burr changes, "spent" burs that get costly & just overall tough on the milling equipment.
Tell your boss not to worry. After it's milled it gets crystallized for 20 minutes in a regular porcelain oven, then turns the shade that is printed on the block.

[Pronto]

We don't use Ivoclar porcelain products because my boss got screwed by a sales rep from them selling their composit system. Since then he's got no interest in them. These blue blocks are pretty interesting though and we are starting to see some call for them. He's also not too thrilled with the idea of a new oven and porcelain system to learn. I did hear somewhere that there is a way around the firing cycle so we wouldn't need a new oven but that's yet to be determined. If he ends up using them he'll probably just buy shades as he need them since most of the kits are full of stuff nobody ever uses.

[PGguy]

Hey guys, Does anybody have the firing program to sinter these Blue Blocks?
I just received 3 units but don't know how to fire them lol

Thanks

[khdental]

All the info you will need is here

Ivoclar Vivadent

Been milling these just shy of 3 years now and we have had a great deal of success with the system.

Also just about to start milling crystal diamond zirconia ht for some stuff.

[PGguy]

Originally Posted by khdental

All the info you will need is here

Ivoclar Vivadent

Been milling these just shy of 3 years now and we have had a great deal of success with the system.

Also just about to start milling crystal diamond zirconia ht for some stuff.

Thank you!

Who do you use to mill?

[paulg100]

We are also waiting on delivery of crystal diamond super translucent so looking forwaard to playing with that.

ALso been using emax cad for around 18 months, works great.

As far as firing them, if you have a 2 stage furnace then you can crystalize, stain and glaze all in one go.

If you only have a 1 stage then you will have to sinter and stain glaze seperate.

Dont let any reps tell you that you CANT use emax cad with a 1 stage furnace. Just use the program for p90 i think, thats in manual and do a seperate sinter.

[khdental]

Currently I use a cerec with both mcxl and classic milling chambers. I have another mcxl coming in the next couple months. Using a programat cs and a p300.

I often crystallize/glaze in one shot when time is a factor, However I like to do separate fires when I can.

If you use the speed crytsallization settings, make sure not to fire more that 2 units at a time.

[PGguy]

Originally Posted by khdental

Currently I use a cerec with both mcxl and classic milling chambers. I have another mcxl coming in the next couple months. Using a programat cs and a p300.

I often crystallize/glaze in one shot when time is a factor, However I like to do separate fires when I can.

If you use the speed crytsallization settings, make sure not to fire more that 2 units at a time.

I have a Programat 3000 & combi 600 I used program 21 on the 3000, it seemed to crystallize ?!?

I have a tech rep calling me back hopefully soon, this is all new to me, just wingin it with what I understand in the instructions

[paulg100]

Yeah the units are not as strong if u crystalize, stain glaze in one go.
If you sinter seprate on the longer cycle they will reach nearer their 360mpa.

The all in one cycle can be as low as around 260mpa from the last CRA report i see on it.

KHdental,

Your the first lab person i have heard say that they are buying ANOTHER MCXL.

You must be happy with the results your getting? What are you mainly milling? full contour emax single units?

After 18 months of battling with inlab (the software and scanner are the biggest problem at the minute imo) im about to order a press furnace to go back to pressing all my multi unit anterior work as the inlab stuff simply isnt there yet.

[2thm8kr]

Originally Posted by paulg100

We are also waiting on delivery of crystal diamond super translucent so looking forwaard to playing with that.

ALso been using emax cad for around 18 months, works great.

As far as firing them, if you have a 2 stage furnace then you can crystalize, stain and glaze all in one go.

If you only have a 1 stage then you will have to sinter and stain glaze seperate.

Dont let any reps tell you that you CANT use emax cad with a 1 stage furnace. Just use the program for p90 i think, thats in manual and do a seperate sinter.

Hey Paulg100,

Care to share the firing parameters for a single stage furnace, P80?
Thanks
Sam

[PGguy]

I dug up my firing chart, I'm using the EP 3000 oven, a few newbie questions:

1. Whats "speed" crystallization & how does it differ from crystallization...Captain obvious would reply "its faster" I suppose.

2. I see For Layering Tech:
P101 is Crystallization MO/LT
P102 is Speed Crystallization LT
P103 is Wash...
My Question, why use P101?

Thanks

[paulg100]

IPS e.max CAD

check the back of the lab manual, its all there.

PCguy: the reason to use 101 is you get a stronger restoration at the end of it, see above

[PGguy]

Originally Posted by paulg100

IPS e.max CAD

check the back of the lab manual, its all there.

PCguy: the reason to use 101 is you get a stronger restoration at the end of it, see above

Thanks for the link, I ordered the intruction manual on thursday...Little impatient I guess

[paulg100]

i dont think the strength / fire cycle relationship is mentioned in the manuals.

This is something ive picked up from other studies.

Its pretty logical i suppose as its glass at the end of the day..

Slower temp rise, longer hold and slower cool = better maturity and less stress, therefore stronger glass. the more you cut any of the perameters the bigger effect on final strength.

surgeries are continually pushing the parameters for shortening the cycle as it obviously makes a big difference when u have a patient waiting. I think the official ivoclar speed sinter is down to around 19 minutes now. If you want the parameters ill get and post if i remember, i think there on their website somewhere. this is acheived by cutting close and cool times which = more stress.

Even though i have the P700 now i still do most of my sintering on the MO/LT setting for the extra strength.

there are other factors that influence the final stength of emax cad, even down to the rubber wheels you use to pre-polish before sintering, which is needed to get a decent surface finish/glaze.

more indepth than you might realize, try and get a copy of the CRA report on emax cad vs e4d milled restorations for a good insight.