I've painted dentil molding trim in a Victorian house and it was easy to do with and airless spray painter. If you want it to be a different color than the wall, just mask it with tape and paper draped down. The hardest part is moving the ladder so maybe a small scaffold would help.
I wouldn’t be able to paint it. Neatly anyway.
dentil moulding is horrible to paint...afraid they would remain cream if it were up to me...lol
Dentil. Of course. I forgot what it's called. Thanks.