From left, Dr.Thomas Wilson, executive director of the Northern Virginia Dental Clinic in Falls Church; Dr. Peter Cocolis, chair of the 2012 Mission of Mercy Dental Fair, who has a dental practice in Springfield; and Dr. Howard Kelley of Vienna, chief dentist of NoVa’s Medical Education Campus, take time to greet patients and hand out literature on oral hygiene. All three were instrumental in organizing the two-day event.