
SP-3 A Modified File Retrieval Technique Using a Newly Developed Lasso Device
CE Hours: 0.75
Description: The frustration and difficulties related with the removal of separated instruments are well known. The presented file retrieval technique has the approach to be as minimal invasive as possible and more predictable in terms of time management, costs and outcome. A new troughing technique using sonic instead of ultrasonic reduces the time needed to expose the fractured instrument and minimizes the risk of a second fracture of the instrument as well as heat induced tissue damage. A specially developed wire with higher tensile strength and reduced elongation as well as a new ball bearing tensioning mechanism allows to remove even ingrained files using a strict push and pull movement. The device and technique will be described in detail and a step by step tutorial will be presented during this lecture. Several cases will be shown to show the possibilities of this file retrieval technique.
Learning Objectives:
- Evaluate the risks and benefits of the retrieval of broken files.
- Discuss the advantages of the presented technique.
- Evaluate the clinical use of the presented modifications in the lasso technique.
Key:






Dennis M. Köhrer, D.D.S.
Dennis Köhrer studied engineering at the renowned RWTH Aachen University and received his dental degree from the private University Witten/Herdecke. He began to specialize in endodontics and microsurgery early in his career and is actively engaged in modern technologies of endodontic treatment.
In numerous international courses and lectures he imparts his knowledge and has published several articles.
Due to his engineering expertise, he is involved in the development process of dental products and has invented the Endo-Cowboy, an endodontic instrument for the retrieval of broken files.
Together with his brother he is leading a clinic with seven doctors where he continuously strives to perfect techniques and instruments for a higher level of patient treatment.
Disclosure(s): Kerr Endodontics: Speaker/Honoraria (includes speakers bureau, symposia, and expert witness) (Ongoing); Koehrer Medical Engineering GmbH: Ownership Interest (stocks, stock options, patent or other intellectual property or other ownership interest excluding diversified mutual funds) (Ongoing)