An Introduction to Millable Dental Materials | .
In the case of milling stock, size certainly matters. While it is possible to mill a 5mm loweranterior substructure from a disk that is 20mm tall, it is costly, wasteful, and timeconsuming. A 5mm zirconia substructure milled out of an 8mm tall stock can cost half as much and mill 25% to 30% faster than the same unit milled from 20mm ...