Accepting new patients! Dr. K. Williams Dentistry is a dental office that provides dental care for all ages in St. John's, Newfoundland. Whether you are looking for a cleaning and check-up, a cavity filling, a solution to a toothache, or a new denture, we are here to help you! We understand that a lot of people have dental anxiety, and we are happy to offer our patients nitrous oxide and oral sedation. Our office is located at 55A Cashin Avenue in the ground floor of a white building.