WELCOME TO OPTIMAL DENTAL CENTER – RESTON Dentist in Reston, VA! Drs. Quyen Dang, Tara Zand, Cac Bui, and Hieu Nguyen, dentists in Fairfax and Reston, VA, are committed to providing you with excellent dentistry in a comfortable environment. You deserve a skilled, experienced dental team that can help you ensure great oral health. Experience what patient-centered care can do for you. We welcome new patients of all ages. Your dental care experience is fully personalized at Optimal Dental Center. Dr. Dang and our friendly, knowledgeable team will address your every question and concern