Hands-on
London
30 - 31 Jul 2027
English

Non-Surgical Root Canal Retreatment: Hands-on Workshop by Yoshi Terauchi

Yoshi Terauchi
Course details
Lecturers
Venue
Reviews
ADA CERP

Program

Hands-on course with Yoshi Terauchi — your key to successful non-surgical root canal retreatment and predictable instrument fragment removal with minimal complications and long-term results!

Two intensive days of theory and practice await you.

During the theoretical part of the course, you will learn:


— Accurate diagnosis and treatment planning for non-surgical retreatment
— Effective and safe techniques for removing gutta-percha and bacterial biofilms from root canals
— Methods to prevent and bypass ledges in canals using predictable and practical approaches
— Innovative approaches to root canal obturation using MTA.

The practical part of the course will allow you to:


— Develop skills for precise and safe removal of instrument fragments using modern techniques and specialized equipment
— Learn to manage complications such as ledges and perforations, significantly improving treatment prognosis
— Gain confidence in applying comprehensive retreatment protocols aimed at long-term success and tooth preservation.

This course is a unique opportunity to master advanced techniques and significantly elevate the quality of your endodontic practice!

 

IMPORTANT: the “Seminar. Standard”, “Seminar. Comfort” and “Seminar + Demonstration. VIP” participation options are also available for purchase.

 

Advantages of the “Hands-on workshop” participation option:

– Participation in the scientific program
– Coffee break
– Notes and handouts
– Certificate of participation
– CPD credits available upon request
– Lunch 
– Priority seats in the venue
– Distinct reception counter
– VIP certificate
– VIP badge 

– Access to online training “Non-Surgical Root Canal Retreatment. Clinical Protocols by Yoshi Terauchi”

 

Program

 

Day 1 (July 30)

Theory

 

Course aim: to enhance participants' knowledge and clinical decision-making skills in non-surgical root canal retreatment and provide a structured approach to the predictable and minimally invasive management of challenging endodontic retreatment cases.

Learning objectives: 


— Apply a systematic approach to the diagnosis and treatment planning of non-surgical retreatment cases
— Identify the biological and clinical factors contributing to persistent endodontic disease and treatment failure
— Evaluate and select appropriate techniques for the removal of gutta-percha and biofilms during retreatment
— Apply predictable techniques for the prevention and management of ledged canals
— Assess separated instrument cases and select appropriate strategies for safe and minimally invasive instrument removal
— Recognise the indications, clinical properties and limitations of MTA in retreatment and perforation repair
— Apply evidence-based principles to the management of challenging endodontic retreatment cases.

Learning content.

Theoretical part:

Non-Surgical Root Canal Retreatment: Yoshi Terauchi’s Protocols

— Accurate diagnosis and treatment planning:
 

- How to differentiate odontogenic pain from non-odontogenic pain
- Diagnosis in retreatment cases.
 

— Causes of non-healing cases:
 

- Where are the bacteria causing apical periodontitis located?
- Where do biofilms typically form?
 

— Removal of gutta-percha and biofilms:
 

- Why is it necessary to remove gutta-percha during retreatment?
- What is the most effective method for removing filling material?
 

— Managing ledged canals:
 

- How to prevent ledge formation?
- Which techniques allow predictable and effective bypassing of ledges?
 

— Predictable and minimally invasive instrument removal:
 

- Practitioner preparation
- Diagnosis and treatment planning for broken instrument removal
- Key concepts of broken file removal (BFR)
- Root canal preparation methods
- Main techniques for broken file removal (BFR).
 

— MTA obturation in retreatment (perforation closure):
 

- Comparison of clinical properties and canal obturation using gutta-percha vs. MTA
- Predictable obturation techniques using MTA.

Day 1 (July 31)

Hands-On

Modern Approaches to Broken File Removal (BFR) and Ledge Management

Participants will master key aspects of the clinical protocol and will be able to:
 

— Perform accurate diagnostics for broken file removal
— Develop predictable treatment plans for broken file removal
— Understand the principles of broken file removal in clinical practice
— Ensure minimally invasive and predictable canal preparation during broken file removal
— Select the optimal technique for successful broken file removal (BFR) and ledge management.

 

VERIFIABLE CPD

 

9 hours of verifiable CPD

 

GDC Development Outcome: C
Maintenance and development of knowledge and skill within your field of practice.

 

Quality Assurance

 

This CPD activity is subject to quality assurance by OHI-S. The course content, learning objectives and delivery have been reviewed to ensure their relevance to the professional development needs of dental professionals. Participant feedback is collected following the course and used to support ongoing quality improvement.

 

CPD Certificate

 

Participants will receive a Certificate of Verifiable CPD confirming the course content, learning objectives, GDC Development Outcome and total number of CPD hours.

 

More fun together!

Discounts for group registrations!

3

5 %

4-6

7.5 %

7+

10 %

Group discount picture

Lecturers 1

World-renowned endodontist in Connecticut, USA and Micro-Endodontic Center in Tokyo, Japan. Developer of the Terauchi File Retrieval Kit, including the Yoshi Loop micro-lasso for accessing broken files in narrow and curved canals, and modified ultrasonic tips requiring minimal tooth structure removal. Lecturer at Tokyo Medical & Dental University. Maintains a private practice limited to endodontics since 1998. Author of multiple articles in national and international peer-reviewed journals. Contributor to several textbook chapters, including the 11th edition of “Pathways of the Pulp”. International and national lecturer in modern endodontics. Founder and director of Dental Arts Academy in Tokyo, providing advanced hands-on training in endodontics and aesthetic restoration with world-renowned clinicians.
 

Venue

London, Great Britain

OHI-S is a global educational platform for dentists, trusted by more than 220,000 dental professionals in over 40 countries.

 

Our core product is OHI-S Membership. The platform offers education from internationally renowned experts across all major areas of dentistry in a wide range of formats, including online courses, congresses, seminars, and hands-on workshops.

 

The platform is available in seven languages: English, Russian, Spanish, German, Italian, Portuguese, and Ukrainian.

 

Hands-on courses take place in Kyoto, Florence, Rome, Bologna, Vienna, Berlin, and Prague. Participants can combine professional education with cultural experiences in these historic cities.

 

Beyond education, the mobile app and dedicated social network support professional connections, allowing dental professionals to learn, exchange clinical experience, and grow alongside colleagues worldwide.

 

Learn more about OHI-S

 
Logo CERP

Recommended for: Pediatric dentists, Endodontists, Restorative dentist, General dentists.

Total CE credits: 9

Total lecture time: 9 h

 

Course created: 09/11/2026. OHI-S receives no commercial support for this program.

 

The articles:

 

1. Reprint of: The Effect of Mineral Trioxide Aggregate Obturation Levels on the Outcome of Endodontic Retreatment: An Observational Study. Yoshi Terauchi. Mahmoud Torabinejad, Kingsley Wong, George Bogen. 2024

2. The Effect of MTA Obturation Levels on the Outcome of Endodontic Retreatment: An Observational Study. Yoshi Terauchi, et al. 2023

3. Management of Fractured Instruments. Yoshi Terauchi. 2022

 

This continuing education activity has been planned and implemented in accordance with the standards of the ADA Continuing Education Recognition Program (ADA CERP).

ADA CERP is a service of the American Dental Association to assist dental professionals in identifying quality providers of continuing dental education. ADA CERP does not approve or endorse individual courses or instructors, nor does it imply acceptance of credit hours by boards of dentistry.

Concerns or complaints about a CE provider may be directed to the provider or to the Commission for Continuing Education Provider Recognition at ADA.org/CERP.