Drs. Cheryl F. Callahan and Joyce Thomas are dentists practicing in Rockville. Services offered include general and cosmetic dentistry, whitening, implants, x-rays, veneers, treatments and contouring for gums, dentures, bridges and crowns and orthodontics. Visit Drs. Callahan and Thomas' website for a complete list of procedures and information on both doctors. Appointments may be made through the website. Call for more information and to schedule an appointment.