Mineral trioxide aggregate is a biocompatible dental material consisting of thyroxide powder and hydrophilic particles. In addition to their dentinogenic and osteogenic potentials, it also exhibits good sealing properties. It has a wide range of areas of use in endodontic and restorative dentistry. In clinical practice, it is a material of choice in many applications such as repair of perforations, root-end fillings, apexhivation and regenerative endodontic treatment procedures, vital pulp treatments.