35 years, and the whole trade changed underneath us.

A case arrived as an alginate or polyvinyl impression, was poured in stone, sectioned, pinned and mounted on an articulator. A technician built the restoration in wax, invested it, burned out the ring, cast it in metal, and only then began the ceramic work. Two or three firings later, it was finished by eye against a shade tab held up to a window.

Everything that could vary, varied: the mix ratio of the stone, the expansion of the investment, the humidity in the room, the temperature of the spatula. A technician's skill was largely the skill of holding a dozen small variables steady, day after day, without a single number to check them against.

Pressed lithium disilicate changed what a single anterior unit could be, and the first generation of laboratory scanners and design software changed something quieter but more consequential: a restoration acquired a file. A coping could be designed once and reproduced, rather than carved once and lost.

Early digital work was not obviously better. Milled margins were coarse, the software was slow, and a good hand was still faster than a bad workflow. What the decade did establish was the idea that a restoration has a specification — geometry that exists somewhere other than in a technician's memory.

Full-contour zirconia solved a problem the profession had lived with for fifty years: layered porcelain chips, and monolithic material has no porcelain to chip. Yttria-graded discs then made the same material available across a range from strength-first to translucent, which turned prescribing into a genuine decision rather than a default.

At the same time, the impression stopped being a physical object. A case that arrives as a scan can be verified before anyone commits stone, resin or a disc to it — which is why our review step exists as a named stage today. It only became possible when the case stopped being a lump of set silicone in a padded envelope.

The workflow is now continuous. Files arrive from any major scanner, are designed in one of two CAD environments, are milled from a batch-traceable blank or printed on a validated resin, and are checked back against the approved design rather than against a technician's recollection of it. Lot numbers attach to the case as it goes.

The part that surprises people is how little of the craft this removed. Someone still decides where a connector needs cross-section, still cuts back and layers an anterior unit by hand, still polishes a surface so it will not abrade the opposing dentition. Digital tools took away the variance. They did not take away the judgement.