RESUMO
@#Minimally invasive root canal therapy should be defined as a discipline which adhere to a concept of preserving the healthy tooth structure as much as possible during all the root canal therapy procedure. In the past 15 years, the concept of minimally invasive has spread and developed fast throughout the diagnosis and treatment of endodontics, which made the root canal therapy (RCT) procedure safer, more accurate and efficient. Minimally invasive endodontics rely on the development of various kinds of therapeutic devices and materials, including the 3D image auxiliary equipment, operation microscope, the NiTi instrument systems and the disinfection and obturation material. Minimally invasive endodontics is a therapeutic concept of the modern root canal therapy which redefined the standard of what a successful RCT is.