Dr. Riyadh Althumairy received his Bachelor of Dental Surgery from King Saud University at Riyadh, Saudi Arabia in 2008. He completed a one-year internship program in general dentistry at the same institution in 2009. He worked as staff dentist at King Abdulaziz Medical Center in Riyadh for 3 months before joining Endodontic department at King Saud University as teaching assistant. He did a one-year internship in Endodontics at University of Texas Health Science Center at San Antonio followed by residency program and received his certificate in Endodontics in 2013. He finished his master in oral sciences at the same institution in 2013.