Our Philosophy Because oral health is integral to overall health, we strive to provide the Orlando area with dental care to help you enjoy a bright, beautiful smile for many years. We will work with you to develop a treatment plan that meets your immediate needs and establish preventative dental care to ensure your smile lasts a lifetime! Dr. Um's Backgound Dr. Rhina Um, Doctor of Dental Medicine and Owner.Dr. Um is a well-respected Doctor of Dental Medicine (D.M.D.) with more than 20 years of experience. Dr. Um graduated from the University of Kentucky in Lexington in 1993 with a B.S. in Biology. In 1997, Dr. Um earned her D.M.D. at the University of Kentucky in Lexington.