She received her bachelor's degree from King Abdel-Aziz University. She earned her master's degree and a doctorate in dentistry and psychotherapy from the University of London.
She created a cognitive scale designed to measure the degree of fear of the dentist in children and adolescents as a first step to treat these fears through use of psychological and behavioral methods. She has won many awards for her research.
Al-Nemnkani is tri-lingual. In addition to her research and work as a dentist, she teaches postgraduate students at the Eastman Institute of Dentistry at the University London. She writes in a number of scientific journals and magazines.