Vbook by
Yoshi Terauchi
Ultrasonics in broken file removal by Yoshi Terauchi. A series of 4 video pages (episodes).
Video books: a totally new online format of e-learning in dentistry
This Vbook by Dr. Yoshi Terauchi consists of 4 video pages (episodes) with a detailed scientific description of the highest educational level
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Broken file removal preparation
Vbook by Yoshi Terauchi
The preparation for the broken file removal in endodontics may consist of several steps. The most important procedures are discussed in the first Vbook page such as:
  • Canal enlargement to the broken file
  • Space creation on the inner wall until BF dances
  • Instrument removal attempts with ultrasonics, or a loop, or airblows
  • Bypassing the broken file with rotary files
  • Instrument removal attempts with rotary files
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What is wrong when the broken file is not dancing?
Vbook by Yoshi Terauchi
If you saw the broken file dancing, you are only 10 seconds away from removing it. In this video page we will discuss the main reasons why the broken file is not dancing in preparation.
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Ultrasonic broken file removal attempts
Vbook by Yoshi Terauchi
You are within 10 seconds away from the broken file removal.
When the broken file is visible, you should activate ultrasonics on the inner wall in the presence of EDTA/oil. When the broken file is non-visible, you should create space on the inner wall and activate ultrasonics at the same time in the presence if oil. In this video page we will discuss the most important techniques of using ultrasonics in broken file removal.
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Non-ultrasonic broken file removal attempts
Vbook by Yoshi Terauchi
You are one step away from removing he broken file. Non Ultrasonics includes the use of loops, XP-Endo Shaper (XPS)/Finisher(XPF) files, and HyFiex EDM files.
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Dr. Yoshi Terauchi
Vbook by Yoshi Terauchi (D.D.S., PhD, Tokyo, Japan)
Dr. Terauchi is a part-time Professor at Tokyo Medical & Dental University and maintains a private practice limited to endodontics since 1998 in Tokyo, Japan. He earned his DDS in 1993 and completed his residency at Tokyo Medical & Dental University in 1995, where he also received his PhD from the Department of Endodontics. He has published numerous articles in peer- reviewed journals nationally and internationally. He also authored in several chapters in textbooks including the 11th edition of Pathways of the Pulp.

Dr. Terauchi is a founder of the biggest dental training center in Japan limited to endodontics called Dental Arts Academy.

The main scientific focus of Dr. Terauchi has been "Broken File Removal" in endodontics. He is an inventor of numerous methods and technics in BRF, including specific devices and instruments such as the famous TFRK (Terauchi File Retrieval Kit).
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Content of the Vbook by Yoshi Terauchi
4video pages (episodes)
Video book
"Ultrasonics in broken file removal by Yoshi Terauchi: a series of 4 video pages (episodes)"
Dr. Yoshi Terauchi, Tokyo, Japan
Video page 1: Broken file removal preparation.
Video page 2: What is wrong when the broken file is not dancing?
Video page 3: Ultrasonic broken file removal attempts.
Video page 4: Non-ultrasonic broken file removal attempts.
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Ultrasonics in broken file removal by Yoshi Terauchi. A series of 4 video pages (episodes).
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