Yes on dentistry... Incredible progress.
On another part of this high tech, DW went in for root canal, and some associated problems. The dentist used a remote double-eyed microscope, and an very high speed drill (or whatever the instrument was) to go in and complete what used to be an hour of agony in about 3 or four minutes.
Don't know details, but the dentist keeps a "patient book" with letters, cards and comments about his work. I looked through the book and saw literally hundreds of notes... words of praise and thanks.
I looked for info on this, "microscopic dentistry" and found several sites, of which here is one:
Microscopic Dentistry - Best Cosmetic Dentist Susan Hollar, DDS | Arlington - DFW Texas
Not our dentist, but general info on the process.
One of the things that impressed me most, was that when DW had the procedure, there were 8 patients who came and went in the hour. (anaesthesia)... all came out and made comment on their visit. I do believe the dentist was considered a saint.