Zirconia Marginal Chipping when milling
Michael E. Grable · Sep 26, 2013 at 9:34am
Michael E. Grable
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
Posted Sep 26, 2013 at 9:34amSep 26 2013, 9:34:41 am
Chris Valdez
Chris Valdez upvoted this
Shanda Robb
1 comment by Shanda Robb
Question
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...
Answered By
Michael E. Grable
. at . · Bristow, VA
Started in 1976 in the same lab in which I now own with two partners. Serving the dental community in many ways; doctors, laboratories and vounteering services.
Christopher Nelson
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...[More] quality of the bur and the spindle.
Scott Dellisola
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 .