Help with Porcelain Bubbling Problems?
Michael Andreas · Mar 4, 2013 at 1:10pm
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 gold interface gets into the stone, it can no longer be used for finishing.
Posted Mar 4, 2013 at 1:10pmMar 04 2013, 1:10:35 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
Michael Andreas
Owner at Dominion Crown and Bridge Lab · Leesburg, VA
Graduated from J. Sargeant Reynolds Community College Richmond VA in 1980. Worked at Toothworks Lab. for 4 years. Opened Dominion C & B Lab. in 1984 in Leesburg Va. Have been running it as a small lab. ever since. Married with 2 kids.
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!
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...