My understanding may not be correct, but when I think of a crown I think of a man-made partial tooth that is attached to what is left of a real tooth. When I think of an implant I think of the whole thing, the metal post and the porcelain tooth.
Yeah that makes sense but they are all broken down into seperate procedures. Even when getting a crown the bill can be broken down by root canal, post implant into what is left of that tooth after the root canal, then crown put on the post. Same with and implant. The crown itself is the man made tooth metal or porcelain.