Saleh Ali Alqahtani obtained a Diploma from the College of Applied Sciences at King Khalid University from 1994-05-01 to 1997-07-01. He achieved his Bachelor degree at the College of Dentistry at King Khalid University 1/8/2005 to 1/8/2012.  From 2013-07-01 to 2014-07-01, he studied at the College of Dentistry at New York University, specializing in Comprehensive Dentistry. From 2014-05-14 to 2017-05-14, he obtained a Certificate of Residency in Operative Dentistry from Indiana University Purdue University at Indianapolis, with an MSD degree. From 2017-09-25 to 2022-07-01, he obtained a PhD from the Translational and Clinical Research Institute/School of Dental Sciences/Dental Materials Unit at Newcastle University. Since 2023-01-01 to the present, Saleh Ali Alqahtani has served as an Assistant Professor of Restorative Dentistry at the College of Dentistry at King Khalid University. From 2025-08-20 to the present, he has held the position of Head of the Restorative Dental Science Department at King Khalid University. His research fields mainly include Restorative, Resin-Based Composite (RBC), Light cure units (LCU), and others.