“…Finally, the dawn of the "dentogenic restoration" arrived, and in 1955 Frush and Fischer proposed selection of teeth on the basis of the sex, personality, and age of the patient (Frush and Fisher, 1955, 1956, 1958. Since all patients possessed these three essential factors, namely-sex, personality, and age-researchers reasoned that the "SPA" factor needed to be interpreted to optimize the esthetic appearance of the prosthesis (Stein and Stein, 1936;Subasree et al, 2016). According to Frush, an ideal dentogenic prosthetic restoration should cre-ate psychologic as well as physiologic comfort for the patient and therefore requires a proper interpretation of the sex, personality, as well as the age of the patient.…”