All About Orthodontic TreatmentAt Shanahan Orthodontics, we believe in personalized care for you and your family. That’s why each and every treatment decision is based on your needs and desires. Learn More 300 Main St. Groton, MA 01450 (978) 448-2300 169 Kinsley St. Nashua, NH 03060 (603) 589-9222 FOLLOW US FollowFollowFollow Schedule an Appointment