The Leading Family Dentist In Arlington From the moment you step into the office of Mark C. Marchbanks, D.D.S. Family Dentistry, you’ll understand why Dr. Marchbanks is Arlington’s favorite dental health care provider. At Mark C. Marchbanks, D.D.S., your individual care is the top priority. Dr. Marchbanks and his experienced staff of dental professionals work to provide world-class care to each patient while also providing a comfortable and relaxing office environment.