Non-Surgical Root Canal Retreatment. Clinical Protocols by Yoshi Terauchi
Non-Surgical Root Canal Retreatment. Clinical Protocols by Yoshi Terauchi
Course overview
Online Training with Yoshi Terauchi — your key to successful non-surgical root canal retreatment and predictable instrument fragment removal with minimal complications and long-term results!
During 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.
Objective of this training:
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.
Don’t miss this unique opportunity to master advanced techniques and significantly elevate the quality of your endodontic practice!
Course lessons
Lesson 1. Clinical Thinking in Endodontics with Yoshi Terauchi
The lifestyle of Yoshi Terauchi
The financial aspects of endodontic treatment by Yoshi Terauchi
Critical thinking: Why should endodontic treatment be more expensive than placing a dental implant?
Review of articles and textbook chapters published by Yoshi Terauchi
Extraction or management of hopeless teeth with large periapical lesions
Retreatment and periapical healing
Extraction vs implants vs endodontic retreatment
Management of cases involving retrieval of broken instruments inside the canals.
Lesson 2. Endodontic Retreatment: Diagnosis, Pain, and Healing
Four reasons to remain highly successful in endodontic retreatment
Goals of endodontic retreatment
Definition of success in endodontics
Differentiating odontogenic and non-odontogenic pain
Healing of apical periodontitis: literature review
Understanding the process of delayed healing and the progression of healing
The three sources of pain
Diagnosis in endodontic retreatment cases
Post-endodontic restoration failure and its impact on the prognosis of endodontic therapy
Understanding the pain response in inflamed pulp
Periapical pathology
Percussion and pulp diseases.
Lesson 3. Psychogenic and Neuropathic Pain in Dental Practice
Psychogenic pain and its understanding in dentistry
Neuropathic tooth pain after endodontic procedures
Factors that can induce psychogenic pain and the descending pain inhibitory system
Understanding “happy hormones” and serotonin production in relation to dental practice
Phantom tooth pain: analysis of cases of non-odontogenic pain misdiagnosed and treated endodontically
The flowchart of tissue damage: from pain to healing.
Lesson 4. Gutta-Percha Removal and Modern Obturation Techniques in Endodontics
The effect of restoration quality on the prognosis of endodontic treatment
The prognosis of endodontic treatment depending on the coronal restoration
The sealer-based obturation (SBO) technique
The continuous wave condensation (CWC) technique
The difference between the single cone (SC) technique and the continuous wave condensation (CWC) technique
MTA as a root canal filling material
External apical root resorption associated with apical periodontitis
Targets to remove in retreatment cases
Step-by-step protocol for the prevention of coronal leakage using composite material
Problems with gutta-percha (GP) root canal fillings and GP-centered infection
Instruments and step-by-step protocols for gutta-percha (GP) removal
Step-by-step protocols for the removal of external gutta-percha (GP) fillings.
Lesson 5. Modern Technologies for Root Canal Cleaning and Obturation Removal
Video demonstration of the removal technique for gutta-percha filling
Single-visit endodontics
Analysis of clinical cases of gutta-percha removal and root canal obturation with MTA
Removal of MTA obturation material using ultrasonics and EDTA
Step-by-step video demonstration of the removal of set MTA obturation material
Biofilm removal protocols
Application of the Piezoflow for debris removal within the root canals
Biofilm removal using Self-Adjusting Files (SAF) and the XP-endo Finisher
Video demonstration of the application of the XP-endo Finisher.
Lesson 6. Advanced Techniques for Bypassing Ledges in Root Canals
Management of ledged canals
Characteristics of ledge formation
Prevention of ledge formation and instrument fracture
Analysis of different root canal file tip designs
Crown-down technique and shaping
Working with bi-conical file tips
Video demonstration of ledge management using bi-conical file tips and rotary instrumentation
Techniques to bypass an invisible ledge
Selection of files and rotation settings for bypassing a ledge
Application of the AI Motor with T-mode by Woodpecker
T-mode techniques for bypassing ledges
Techniques for bypassing invisible ledges with MP NiTi rotary files
Bypassing ledges in S-shaped canals
Analysis of clinical cases and video demonstration of the protocols.
Lesson 7. Broken File Removal in Endodontics: Diagnosis, Planning, and Prognosis
Three factors affecting the success of broken file removal (BFR)
The procedure for broken file removal (BFR) and canal preparation in a funnel shape
Diagnosis and treatment planning for broken file removal (BFR)
Do you need to remove every single broken instrument?
Prognosis of retained instruments
Broken instruments in relation to healing
Case study: broken instrument with a preoperative periapical lesion in retreatment
Accurate CBCT diagnosis and treatment planning.
Lesson 8. Management of Broken Instruments: Mechanical, Ultrasonic, and Surgical Techniques
Characteristics of mechanical removal of broken instruments
Surgical approach to removal of broken instruments
Application of ultrasonic tips for broken instrument removal
Placement of ultrasonic tips inside the canal
Protocols for ultrasonic activation without pecking motion
Drawbacks of using ultrasonics and how to manage them
What type of irrigant is best for instrument retrieval
Step-by-step video demonstration of using ultrasonics for instrument retrieval.
Lesson 9. Broken Instrument Removal with the Terauchi File Removal Kit
Key canal preparation techniques for broken instrument removal
Application of the Terauchi File Removal Kit (TFRK)
Protocols for canal enlargement
Protocols for retrieving separated instruments using the Terauchi File Removal Kit (TFRK)
The 10-second rule when working with the ultrasonic tip from the Terauchi File Removal Kit (TFRK)
Removal of broken instruments with MP NiTi files.
Lesson 10. Strategies for Removing Broken Files Using TFRK Loop and XP-Endo Shaper
Recommended irrigant when removing a broken file beyond the curve with ultrasonics
Application of the TFRK loop
Preparation for the use of the TFRK endodontic loop
Removal of broken instruments with the XP-Endo Shaper
Rational speed in relation to torsional fatigue and cyclic fatigue
Video demonstration of working with the TFRK endodontic loop
Step-by-step analysis of clinical cases.
Lesson 11. Broken File Removal Beyond the Apex: Clinical Protocols and Material Selection
Removal of broken instruments beyond the apical foramen
Application of Piezoflow and XP-Endo Finisher
Step-by-step analysis of clinical cases of broken instruments beyond the apical foramen
Flowchart of broken file removal treatment plan
Protocols for single-visit endodontic treatment
Why MTA obturation over gutta-percha in non-surgical retreatment cases?
Canal preparation for MTA and preparation for gutta-percha: comparison of the two techniques
Comparison of properties between MTA and gutta-percha
Advantages of MTA non-surgical retreatment prior to micro-endodontic surgery.
Lesson 12. Clinical and Histological Insights into MTA Obturations
Histological assessment of MTA application and literature analysis
Step-by-step MTA obturation procedure
MTA obturation using 812MT with sonics
Detailed analysis of clinical cases from diagnosis to post-treatment healing monitoring.
