The medicine and dentistry entering a new era in which the news therapy approaches like genetic therapy, cellular therapy, engineering tissue and medicine regenerative they extended the arsenal of possibilities for our patients. The Stem cells in the field of the regenerative medicine, by its characteristics of self renewal, expansion and differentiation, have shown to be an important alternative for the treatment of pathologies and to alterations in the teeth and periodontal structures. The tissue regeneration it implies the replacement of weaves affected with identical cells that can be generated from the stimulation of Mesenchymal Stem Cells (MSCs) by different involved molecular and cellular mechanisms in the dental morphogenetic; for that reason different options look for to facilitate the use of MSCs like clinical treatment of periodontal diseases and functional oral injury.