JoAnn Boraas, D.D.S. 6945 Penn Ave S, Richfield, MN55423 This is the office of Dr. JoAnn Boraas, D.D.S. She provides full pediatric dentistry support for kids of all ages.…More This includes use of nitrous oxide to ease patients, the latest in reduced-pain dental technology and, of course, a gentle demeanor. Services include check-ups, fillings and emergency visits. Please call for further information.