Welcome to the forum!
So we're looking to buy a scanner and have it run on a computer we're building here. I don't know too much about the dental stuff because I'm just helping my dad out with the computer part. I've done a little research and come up with this build:
https://pcpartpicker.com/list/6zT4wh From what I know we're getting a 3Shape e3.
I really appreciate any feedback or recommendations, also sorry if I'm breaking any forum rules about posting or anything.
The build is perfectly fine for running 3shape comfortably.
I am a dental tech, but I have worked a lot with PCs and built a few for friends etc (hobby),so here are some suggestions. Although you do look like you also know PCs.
Swap the 2 fans for the equivalent Noctua ones (NF-A14). Or Bequiet's Silent Wings 3 140mm. Both are better quality, have more airflow, and are quieter. Corsair fans are not worth it. Obviously rgb is not needed since this is a work machine.
CPU cooler is good. I case you cannot find this cooler, you could again go for Noctua. NH-U12/14, NH-D14/15 are all good and more than enough.
Do not go for watercooling.
Finally, change the case. Not just a suggestion here. This case is a hot-box. Looks good, but it's not good for airflow, and your components will suffer. I suggest Bequiet's 500DX, Fractal Design Meshify 2, Corsair 4000D Airflow. All 3 are good choices. I'd personally go for the Fractal inbetween the 3.