Diogo Guerreiro graduated from Instituto Superior de Ciências da Saúde-Sul, Portugal, in 2001. He obtained a Diploma in Endodontics by the Faculty of Dentistry at the University of Valência, Spain, in 2002. He completed his training in Endodontics at the University of Santiago de Compostela where he completed a Masters program in 2007. Diogo Guerreiro started his academic career as a clinical instructor between 2002-2007 teaching undergraduate endodontics and since 2011 he is affiliated with the full time specialty program in endodontics at the faculty of Dentistry - University of Lisbon where he teaches as an invited assistant. Diogo has also a practice dedicated to microscopic endodontics in Setúbal, Portugal. He is a member of the Public Relations committee of the European Society of Endodontology. Diogo lectures internationally and has given many hands-on courses on endodontic treatment.