Dr. Gagliardo grew up in Sherrard, Illinois. He attended the University of Illinois, where he was a Bronze Tablet Scholar with a Bachelor of Science Degree in Biophysics. Dr. Gagliardo went on to attend the University of Iowa College of Dentistry where he received his D.D.S. in 1998.
Returning to the Quad Cities, Dr. Gagliardo joined Dr. Burnham in private practice while his wife Candace began her teaching career at Sherrard High School. Dr. Gagliardo participates in many volunteer activities including Give Kids A Smile and Dental Lifeline Network, and received the Iowa Dental Association New Dentist of the Year Award in 2005 and Outstanding Service Award in 2013. He is active in the ADA and IDA, is the President of the Iowa Dental Foundation, and is the State Chair for the Iowa Dental Association Mission of Mercy.