Alexandra Best Mahon was born and raised in Buffalo, NY. She received her BA in Spanish from Princeton University in 2010, and then attended the University of Florida, where she obtained her Doctorate of Dental Medicine. After dental school, she was accepted to Virginia Commonwealth University for her orthodontic residency, graduating with her Masters of Science in Dentistry and Certificate in Orthodontics. Ali worked as an orthodontic associate for a few years before purchasing the office where she was working in Concord, NC, now named Best Orthodontics. She is married to her wonderful husband Brendan Mahon, Princeton Class of 2010, and they welcomed their adorable daughter Arabella in April 2020.