Cassity & Legacy Implants And Periodontics Serving South Ogden And Kaysville Areas At Cassity & Legacy Implants and Periodontics, our team of experts offer a truly unique and one of a kind experience to each and every patient. The team of doctors have limited their practice in each of the disciplines of their specialty to bring our patients a highly specialized approach to their needs. Dr. Cassity has limited his practice to the surgical placement of dental implants and subsequent procedures for proper site development, including advanced bone and tissue grafting. No other doctor in the state of Utah has limited their practice in this way.