Our lab uses Sirona's inLab MCXL for milling, and have had some issues with milling zirconia crowns. We are having problems with marginal chipping during the milling process. When a prep doesn't allow much space for the margin thickness we usually bulk it out a bit, but that creates a lot of extra grinding time. But my question is would anyone know what might be causing the chipping of the margings when being milled? The machine is calibrated once a week, and we keep the burs fresh, but still get a "choppy" result. Could it be the doctor's prep, or a malfunction with the machine? I hear word other labs don't have this luck, so I was curious as to why we might be having a problem.
We don't use Sirona but rather Amann Girrbaach. I occasionally get a chipped margin but it is usually due to dull burs or someone touching the machine during a program. If you are using fresh burs and the machine is calibrated properly, I question the quality of the bur and the spindle.
Hi my experience with Sironas in lab system is that its a cheap system never seen a great fit never mind its milling capabilities. sell it .
We don't use sirona, however with our system we stopped using the systems tools and when with a third party. We have eliminated chipping almost totally, and the tools are now in use 3 times as long. As for the chipping it might just be the mill itself. Try your spindle is it running true?
Mike
Shanda Robb
Owner at Waterhouse Dental Lab · San Angelo, TX
the seller has not been able to resolve the problem and the situation is destroying a lot of milling
Small denture lab looking to move digital. I haven’t the slightest clue on what direction to go regarding...
