Broken File Removal and Ledge Management in Endodontics

Endodontist specializing in complex non-surgical retreatment, broken file removal, and minimally invasive endodontic techniques. Founder and Director of Dental Arts Academy, Tokyo, Japan. Part-time Professor at Tokyo Medical & Dental University. Private practice in Connecticut, USA and at Micro-Endodontic Center, Tokyo.

Over 33 years of clinical and academic experience in endodontics since graduating in 1993. Earned DDS from Tokyo Medical & Dental University (1993), completed endodontic residency (1995), and received PhD from Department of Endodontics, Tokyo Medical & Dental University. Maintains private practice limited exclusively to endodontics since 1998, developing expertise in complex retreatment cases referred by specialists across Japan and internationally.

International authority on endodontic file retrieval having developed the Terauchi File Retrieval Kit (TFRK), featuring the revolutionary Yoshi Loop micro-lasso enabling unparalleled access to broken instruments in narrow and curved canals, and modified ultrasonic tips requiring minimal tooth structure removal. Developer of standardized protocols for predictable instrument removal achieving success rates over 95% with retrieval times averaging under 15 minutes. Innovator in MTA obturation techniques for perforation closure and retreatment cases.

DDS (1993) and PhD from Tokyo Medical & Dental University. Published extensively in national and international peer-reviewed journals on endodontic retreatment outcomes, instrument retrieval techniques, ledge management, and MTA applications. Contributor to multiple textbook chapters including the 11th edition of "Pathways of the Pulp," considered the definitive endodontic reference worldwide. International lecturer presenting hands-on courses in Japan, Korea, Australia, USA, Europe, and Middle East on non-surgical retreatment protocols, file removal techniques, and complication management. Founder and Director of Dental Arts Academy providing advanced training in endodontics and aesthetic restoration with world-renowned clinicians. Teaches comprehensive retreatment protocols emphasizing accurate diagnosis, effective biofilm removal, ledge management, and predictable MTA obturation for long-term success and tooth preservation.