 are working with human beings to present problems, and those problems can change over time, and disease processes can change over time. There is some consistency, though, with the types of things that we see with dental disease, decay, broken and missing teeth, the bald teeth, emergency care, hygiene, periodontal therapies, et cetera. But then there are emerging fields, things that have changed, I think, more recently on the implementation of a more streamlined workflow with implant placement, for instance,