Prof. Mario Leonardi

Specialist in endodontics with practice limited to endodontic treatment and retreatment. Founder and Director of Mario Leonardi Institute of Postgraduate Studies in Dentistry, São Paulo, Brazil. Leading Brazilian endodontist and educator with national and international recognition. Expert in microscopic endodontics and contemporary endodontic techniques.

Over 30 years of clinical experience in comprehensive endodontic treatment with emphasis on complex retreatment cases, extraction of separated instruments, apical surgery, treatment of root perforations, and management of endodontic complications. Expert in reciprocating single-file systems (WaveOne), rotary instrumentation techniques, obturation protocols, bacterial reduction strategies in infected root canals, and post-endodontic tooth restoration. Known for evidence-based approaches to clinical endodontics supported by academic research.

Author of numerous scientific articles published in peer-reviewed international journals on topics including reciprocating versus rotary instrumentation, bacterial reduction in root canals, obturation techniques and bacterial leakage, post and core crown reconstructions with finite element analysis, and common mistakes in endodontic treatment. Regular contributor to major dental journals and online educational platforms. International speaker presenting throughout Brazil, Latin America, and internationally on modern endodontic techniques, retreatment protocols, and evidence-based endodontics. Director of comprehensive postgraduate programs in endodontics training the next generation of Brazilian endodontists. Creator of WhatsApp study group on endodontics providing ongoing education and case discussions for practitioners. Active on social media sharing clinical cases, techniques, and educational content.

DDS from University of São Paulo (USP), Faculty of Dentistry. Specialization in Endodontics. Extensive continuing education in microscopic endodontics and advanced instrumentation techniques. Director of postgraduate institute since establishment.