Dental pulp stem cells have been discovered for almost 20 years. Since then, various oral stem cells have also been identified which have drawn tremendous attention from the medical and dental community. Particularly, they have led to the establishment of a new discipline in endodontics - regenerative endodontics. However, the education of oral stem cells or stem cells in general in our field is still limited. Starting from the biology courses at the undergraduate level to medical and dental curricula, teaching of stem cell biology has been minimum, if any. Lacking such knowledge may reduce the ability of our clinical judgment in diagnosis, treatment and outcome prediction. This presentation attempts to provide updated knowledge on the current understanding of dental pulp stem cells, oral stem cells and the ongoing research. The following areas will be covered: i) The physical location of oral stem cells in dental tissues. ii) The basic biological properties of oral stem cells and stem cells in general. iii) Oral stem cells for regenerative endodontics. iv) Oral stem cells for medical applications.