Meet Dr Johnson Dr Johnson received a BS in Biology from St Lawrence University, his DMD from Tufts University, his certificate in Pediatric Dentistry and his MS in Oral Biology from the University of Missouri. He retired from the Army in 1994. Board Eligible for The American Board of Pediatric Dentistry, he is a member of The American Academy of Pediatric Dentistry, The American Dental Association and The Massachusetts Dental Society. Dr Johnson has completed advanced training in Growth & Development and Orthodontics at the Rickett’s School of the Southeast - Gnathos.