Regeneration can be done by stem cells derived from exfoliated deciduous teeth. Teeth that are formed from stem cells are denoted to as “tissueengineered” teeth. In dentistry, mesenchymal stem celllike populations were identified from both dental and non-dental tissues has offered sensational opportunities for the application of tissue engineering as well as gene based therapies. These methods have the possibility to lead towards the growth of new approaches for regenerative periodontal therapy. Biodontics is the practice of dentistry that leads to the promotion of repair, restoration, and replacement of dental, oral, and craniofacial structures with natural biological materials of cellular source and it will substitute xenodontics, the practice of dentistry that uses external materials(eg, metals and plastics) for this purpose.