Mike Skramstad I have recently started looking at Vita Suprinity, a new zirconia reinforced Lithium Silicate material (release late summer 2014). I have not had a lot of time to fully make an evaluation, but I wanted to post some initial impressions concerning the milling of the material.
This case was a replacement of a failed ceramic crown on tooth #30. Because of the desire to leave the buccal margin in enamel and due to the confines of the previous prep, I decided to prepare the buccal margin very thin.
Normally this can be accommodated by many different ceramics with experience, but I wanted to take Suprinity one step further and simply fast mill the material with a margin thickness parameter of only 50 microns. Not only did the crown mill extremely quickly (6:47), but it also milled a perfect margin on that very thin area. It was quite impressive.
One of the other neat advantages of this material in its immediate milled state is that you can literally see the prep and margin right through it. It was quite odd I must say, but helpful in evaluating the clinical fit.
Suprinity is a unique material that seems to have some promise. Specifically milling to very thin margins. I look forward to trying it out some more.
