Discolored Zirconia after glazing

[drforbesdmd]

Has anyone who uses emax glaze paste and or spray experienced your zirconia crowns turning black after glazing? I ran a cycle and they came out black. Any idea why this happened? If I try to correct will it work or should I just mill again?

 

[JMN]

First thought is when was your furnace last callibrated.

2nd is whether you used the material before.

3rd is if you have used it before, is that a new can/set/lot number.
if it's the same as you used before, is it in date.

I'm sure someone knows more than I do (everyone does) but that will get a start on possiblities.

 

[drforbesdmd]

First thought is when was your furnace last callibrated.

2nd is whether you used the material before.

3rd is if you have used it before, is that a new can/set/lot number.
if it's the same as you used before, is it in date.

I'm sure someone knows more than I do (everyone does) but that will get a start on possiblities.

Brand new Mihm HTS-2 sintering but the programat CS I used for glazing is when the color changed. The looked fine coming out of the Mihm-vogt

 

[rkm rdt]

looks like you had some crap on your brush.

 

[Contraluz]

Try prolonging the dry time, before the oven closes. Dont apply too much glaze, either. Also, don't put the restorations directly on the tray. These trays are heatsinks! From what I know, these trays also suck up all the contaminants and may pass em along, onto your restorations. I use honeycomb trays. And to keep them clean, I put them in the oven, when I run the cleaning cycle on the Programat. You will find that under the Maintenance tab.

 

[drforbesdmd]

Try prolonging the dry time, before the oven closes. Dont apply too much glaze, either. Also, don't put the restorations directly on the tray. These trays are heatsinks! From what I know, these trays also suck up all the contaminants and may pass em along, onto your restorations. I use honeycomb trays. And to keep them clean, I put them in the oven, when I run the cleaning cycle on the Programat. You will find that under the Maintenance tab.

thanks have you ever tried a different glaze? Was thinking about the insync

 

[Car 54]

Insync is a wonderful glaze, you can't go wrong in giving that a shot.

 

[drforbesdmd]

Insync is a wonderful glaze, you can't go wrong in giving that a shot.

ok i just pulled the trigger on the insync any idea of the glazing set up for the programat cs?

 

[rkm rdt]

It's not the glaze.

 

[Contraluz]

thanks have you ever tried a different glaze? Was thinking about the insync

I actually use Ivocolor Fluo Glaze Powder (not paste!),which has worked great. Regardless what you use, make sure your glaze is fluorescent, since the zirconia crowns are not!!! That is also why you always have to put glaze on a Zr restoration, if you don't want your Pts to stick out in any black light environment...

 

[Car 54]

ok i just pulled the trigger on the insync any idea of the glazing set up for the programat cs?

Step by step programming help, I'm not sure, but maybe something in here will be helpful?

InSync Paste Stain & Glaze Resources - Jensen Dental

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jensendental.com

 

[rkm rdt]

Metal or cement will leave a black residue.
What does it look like under your 10x microscope.

 

[zero_zero]

Has anyone who uses emax glaze paste and or spray experienced your zirconia crowns turning black after glazing? I ran a cycle and they came out black. Any idea why this happened? If I try to correct will it work or should I just mill again?

Quite fugly looking crowns you got there doc...lol...even the zr looks like the opaceous cr@p we had like 15 years ago...

 

[Sda36]

Quite fugly looking crowns you got there doc...lol...even the zr looks like the opaceous cr@p we had like 15 years ago...

Survey Patrick may have something to add here

 

[Sda36]

Survey Patrick may have something to add here

Surely, not the game show.

 

[Car 54]

Quite fugly looking crowns you got there doc...lol...even the zr looks like the opaceous cr@p we had like 15 years ago...

Agree, that was my thought too, to send it to a lab to see and get a better result. It could be the opaque, chair side same day stuff? I'm not sure, as I don't keep track of posts and threads very well...

 

[rkm rdt]

 

[Contraluz]

Surely, not the game show.

 

[Contraluz]

Quite fugly looking crowns you got there doc...lol...even the zr looks like the opaceous cr@p we had like 15 years ago...

That too crossed my mind

 

[rkm rdt]

That too crossed my mind

It crossed all of our minds and reaffirmed to us that " everyone wants to be a dental technician™