Dr. Leandro Pereira began his work in the area of ​​operative microscopy in 1998. Since then he has dedicated himself to the development of microphotography and microfilming through the microscope. He also developed new microsurgical alternatives, being one of the pioneers of endodontic (full) piezoelectric microsurgery. He currently promotes this new microsurgical modality around the world with lectures given in several countries such as the United States, Greece, Bulgaria, Chile, Peru, Spain, Mexico, Argentina , Portugal, Ecuador, Dominican Republic and Brazil. Graduated from UNICAMP Professor of the Department of Endodontics at the Faculty and Research Center São Leopoldo Mandic – Campinas – São Paulo Master and PhD in Pharmacology, Anesthesiology and Drug Therapy FOP-UNICAMP Specialist in Endodontics – Operative Microscopy – Inhalation Sedation Member of the American Association of Endodontists National and International Speaker of Microsurgery and Endodontics with lectures given in several countries such as Germany, United States, Greece, Bulgaria, Chile, Peru, Spain, Mexico, Argentina, Portugal, Ecuador, Dominican Republic, Russia and Brazil In his doctoral thesis he developed the Dental Simulator application that brought a revolutionary pedagogical proposal in the worldwide teaching of anesthetic techniques in Dentistry. The generalist nature of Prof. Leandro led him to author several Chapters in several Dentistry books. First Responder (BLS) by the American Heart Association.