Milling and NO CHIPPING 

Great Aron, all the best.

Food question. The Primemill performs well for zirconia and straight forward posterior ceramics. The Primemill EF bur ceramic mill is exceptional. The one hiccup is over mill for lower anterior applications and conservative anterior preps. The advantage of the MC XL is the 12 bur in Fine Mill. The Primemill does not do as well with Fine Mill due to left bur size of 1.4 mm. However, the Extra Fine Primemill is exceptional on margins and is fast and is what I us for posterior onlays etc. I am moving to the PM7 and Exocad for conservative anterior applications in order to avoid the over mill issues and Exocad has superior anterior design proposals and workflow for Aesthetic designs, starting from virtual diagnostic wax-up through the final restorations. Anterior ceramic applications can be accomplished with the Primemill, however, it requires a more aggressive prep style. All the best in your decision.

Make sure there is good spacer. I think there is a video on this site that address this. I use MiYO 850 over the Ivoclar stain and glaze kits. It works better. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VQPUt_Y4MVU.html

Whenever I look at a new product, I gravitate towards independent studies rather than the manufacturer's ones. Zirconia does not always mean strength. It is crystal size. e.max has a larger crystal size than some of the other LD on the market. I look for fracture toughness over flexural strength for performance parallels.

It depends on the case and the patient, and I usually stop at eight, sometimes I’ve done 10, sometimes I’ll place a provisional, then bring the patient back the next day or so, most of the time, it depends on the aesthetic demands and how long a patient can stay in a chair.

Good point, 50 mp just for the Extra Fine mill, 100 (+) mp, which is now the default for the Fine mill.

Yoni, do you use the Extra Fine mill? I have for years and it is a game changer. A lot of our colleagues don't have this option. For Fine mill, then 100 (+) um margin parameter will improve the outcome. Back in the early days with the compact unit, I would use a 160-200 um routinely and then polish the margins back after the mill. The Extra Fine on the Primemill is almost as fast as the Fine mill. A lot of users out there do not know this; the mill is significantly better for margin, proximal fits, and occlusal anatomy. Extra Fine mill is the only ceramic mill I use on the Primemill. If I need to Fine mill, I prefer the MC XL with the left 12 bur, it is a better mill. All the best my friend. I appreciate your posts and energy on Keep CERECing. And thanks for the shouts.

@@KlimDDS Thank you for that! Unfortunately I do not have the ability to extra fine mill (I have a mcx) at this point in my career but maybe one day I will! Thank you for making your online course so accessible! It was such a huge confidence booster for me. The more people who know about it, the better! 😁