Modern brackets are quite small, and they cover a relatively small area of each tooth, making braces more attractive than they used to be. With fixed braces, there is no plastic in the roof of the mouth. This means speech is unaffected and the flavour of food can be enjoyed fully. As the appliance cannot be removed, it acts full-time, and so it is very effective.
Fixed braces are very good at achieving fine detail, and making the smile look really perfect!