Help with Porcelain Bubbling Problems?
Trisha Bublitz · Mar 4, 2013 at 3:16pm
Trisha Bublitz
I have had this also, please let us know what type of metal and if it is a press to metal porcelain. I am just curious if it is the same I have used that I have seen this with. I am not saying it matters I am just curious. Thanks!
Posted Mar 4, 2013 at 3:16pmMar 04 2013, 3:16:00 pm
Question
Can anyone help? I am getting continuing bubbling in the porcelain right down to the metal. I have tried everything I know and nothing is working. Please help!
Answered By
Trisha Bublitz
Owner/C&B at Custom Crowns Dental Lab · Saginaw, MI
Passionate about Dentistry!
Charles Selser
A possible contributing factor to bubbling is the firing temperature of your first opaque cycle relative to the oxidation cycle temperature. If you are oxidizing the alloy prior to opaquing, even if you then blast off the oxide layer before you apply...[More] opaque it is very important that your first opaque...
Michael Andreas
I agree with Jeff. It's likely contamination of the metal from finishing stones. We had problems when a stone used for removing oxides from implant cases before polishing was then mistakenly used to finish copings. If any of the metal from the machined...[More] gold interface gets into the stone, it can no longer be used for finishing.