RileyS
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Sneeze?View attachment 26290 Anyone have an idea what's happening here? I've had occasional spots but usually just one. This is full on leopard.
After mill (dry) I dust with brush then blow off with compressed air. Maybe oil in the air?
Lol, I was pretty sure it was you.COUGH cough
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Somewhat related and a word of caution. We ordered a couple of air syringes, likely manufactured in China. Hooked up, did some test blast but noticed something else. Turns out oil used in the manufacturing was still internal and was being expressed out of the nozzle. Was a fluke that I noticed it but can't imagine the world of pain this would have caused down the line. Needs a thorough de-greasing via ISP or some other agent of choice. Steam will not suffice. Had a thought of throwing them in the burnout cycle on low but still not sure of remnants of a different nature remaining. ISP in ultrasonic likely the best route.We had this happening with our zirconia as well, after sintering we had white spots, but only on our bridges, we thought it was the oven that was kinda dirty.
We cleaned the oven and I haven't had this issue anymore. No idea if that was the reason!
Dental Air/Water syringes, two button style.Somewhat related and a word of caution. We ordered a couple of air syringes, likely manufactured in China. Hooked up, did some test blast but noticed something else. Turns out oil used in the manufacturing was still internal and was being expressed out of the nozzle. Was a fluke that I noticed it but can't imagine the world of pain this would have caused down the line. Needs a thorough de-greasing via ISP or some other agent of choice. Steam will not suffice. Had a thought of throwing them in the burnout cycle on low but still not sure of remnants of a different nature remaining. ISP in ultrasonic likely the best route.
The title post is a spot in a chalk state, but the content I commented on is a spot that appeared after sintering. The picture did not appear on my smartphone due to data delay, and I only checked the contents of the document about the white spot and posted this comment. (The spots in the photo of the post titled appear to have been soaked in by oil splashing during the milling process.) I had no spots in my coloring. When a little bit of beads were added in the past, one crown choke on the new beads had the same phenomenon, and at the time the new beads were attached to the crown and the corresponding part was white, so I was only interested, but recently all the beads were changed and white spots appeared on several crowns. I was sure. The disc block was A2 shade, but after sintering, the spot was changed to a breaching shade. The prosthetic appliance with spots was milled again, and there was no problem when it was sintered again without cleaning in a sintering furnace without vacuum. Until now, I have been using the sintering furnace without cleaning, but there is no problem. The reason why the beads are the cause is because there is a story like this. please refer to thisView attachment 26290 Anyone have an idea what's happening here? I've had occasional spots but usually just one. This is full on leopard.
After mill (dry) I dust with brush then blow off with compressed air. Maybe oil in the air?
brush the inside well before sinteringI have been getting white spots on my zirc crowns after sintering. I tried using new beads, but that didn't help. Anyone else having this problem?