In humans, there are two broad types of stem cells- Embryonic stem cells and Adult stem cells. Adult stem cell population has been found in many tissues of human body eg. Bone marrow,adipose derived, dental stem cells etc. Dental Stem Cells can be Dental Pulp Stem Cells (DPSC), Stem Cells from Human Exfoliated Deciduous teeth (SHED), Periodontal Ligament Stem Cells (PDLSC), Stem Cells from Apical Papilla ( SCAP), Dental Follicular Stem Cells (DFSC) these stem cells can be isolated and stored for its use in future. They have an important role in future of medicine and dentistry.