It's funny. I often have the same reaction as you. Yet last summer I went to the dentist to have an old filling replaced with a crown. They took a 3D scan of m

It's funny. I often have the same reaction as you. Yet last summer I went to the dentist to have an old filling replaced with a crown. They took a 3D scan of my teeth and used that scan to mill a crown on site in about an hour. It fit perfectly and I could scarcely distinguish it from the rest of my real teeth. 20 years ago, all of this would sound like science fiction to me.