If a prefab abutment is used, and I think a CAD/Ti-Base would fall into that category, I would be very surprised
if the clinic do not bill the patient for it.
The question would be is the type and material in the Ti-Base accurately reflected in the patient clinical record,
which it should be, because that is the actual part in contact with the implant and I feel important for the record,
esp. if there are any recalls (which have not happened in a while).
Just my 2 cents.
LCM