The X-ray was nothing to do with the crown it was simply the normal X-ray taken to check the condition of my teeth and it was that together with visual inspecti

The X-ray was nothing to do with the crown it was simply the normal X-ray taken to check the condition of my teeth and it was that together with visual inspection that made my dentist decide that a crown was necessary. The rest of the process was essentially as you described except that it took place immediately after diagnosis. I just had to wait a few minutes for it to be completed the order did not have to be sent to a separate organization merely to a machine in another room.