Standard vs. Computer-Generated Abutments

Ronda asks us:
My 18 year old son was in a car accident and needed his 4 top front teeth replaced. He has had bone grafted and the
dental implants are in. My question relates to his abutments.

I have heard that there are different types of abutments on the market. Upon doing some research I have also noticed that there are companies that are utilizing advanced computer-imaging in the design of abutments. My question is whether there is really any benefit of one abutment over another? How great is the advantage of computer-generated abutments vs. standard
abutments? Thanks for any help.