A patient has a worn incisal edge and needs a veneer. What type of finish line is used on the incisal edge of the veneer preparation?

When the incisal edge itself is worn/needs to be restored (an incisal overlap/wrap design), a shoulder (or heavy chamfer) finish line on the incisal edge provides the bulk of ceramic needed there for strength and a clean butt margin. A feather edge or chamfer alone is used more on the facial/proximal margins of a conventional (non-incisal-overlap) veneer where less bulk reduction is needed.