Retrieval of Separated Endodontic Files and Other Intracanal

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Retrieval of Separated Endodontic Files and Other Intra-canal Obstructions Using the IRS Core Drill

Retrieval of Separated Endodontic Files and Other Intra-canal Obstructions Using the IRS Core Drill and Instrument Removal System

IRS Core Drills IRS Instrument Removal System

IRS Core Drills IRS Instrument Removal System

IRS® Core Drill vs. Ultrasonics Minimal Dentin Removal Unnecessary Dentin Removal

IRS® Core Drill vs. Ultrasonics Minimal Dentin Removal Unnecessary Dentin Removal

1. Create straight line access.

1. Create straight line access.

2. Choose the IRS Core Drill which most closely relates in size to the

2. Choose the IRS Core Drill which most closely relates in size to the coronal portion of the file. Separated Endodontic File

3. Place the IRS Core Drill over the head of the separated file. 4.

3. Place the IRS Core Drill over the head of the separated file. 4. Using a watch-wind motion, (cutting in a clockwise rotation) begin trephining around the file until there is 1 mm to 1. 5 mm of exposed instrument.

5. Remove the core drill.

5. Remove the core drill.

6. Choose the color coded IRS instrument that corresponds to the core drill that

6. Choose the color coded IRS instrument that corresponds to the core drill that was just used. (IRS assembly needs to be “unthreaded” when placing over obstruction. ) IRS Assembly (unthreaded) Core Drill

7. Drop the IRS assembly over the head of the exposed broken instrument.

7. Drop the IRS assembly over the head of the exposed broken instrument.

8. Slowly engage the IRS screw wedge by threading in a counterclockwise rotation. (It

8. Slowly engage the IRS screw wedge by threading in a counterclockwise rotation. (It is important to allow the lumen to “move” to its desired position to allow the broken instrument to “kick out” of the window).

9. Continue to thread the screw wedge until it is completely engaged with the

9. Continue to thread the screw wedge until it is completely engaged with the obstruction (Tight).

10. Gently rotate entire assembly using a watchwind motion to loosen the obstruction. Continue

10. Gently rotate entire assembly using a watchwind motion to loosen the obstruction. Continue to unwind and lift assembly until obstruction is removed.

Example of Silverpoint Removal 1. Radiograph of silverpoint. Photo’s courtesy of: Dr. Charles Agriesti,

Example of Silverpoint Removal 1. Radiograph of silverpoint. Photo’s courtesy of: Dr. Charles Agriesti, DDS Memphis, TN USA

Example of Silverpoint Removal Continued 2. Partial silverpoint removal. Photo’s courtesy of: Dr. Charles

Example of Silverpoint Removal Continued 2. Partial silverpoint removal. Photo’s courtesy of: Dr. Charles Agriesti, DDS Memphis, TN USA

Example of Silverpoint Removal Continued 3. Continued removal of silverpoint using Red IRS. Photo’s

Example of Silverpoint Removal Continued 3. Continued removal of silverpoint using Red IRS. Photo’s courtesy of: Dr. Charles Agriesti, DDS Memphis, TN USA

Example of Silverpoint Removal Continued 4. Radiograph of completed silverpoint removal and endodontic treatment.

Example of Silverpoint Removal Continued 4. Radiograph of completed silverpoint removal and endodontic treatment. Photo’s courtesy of: Dr. Charles Agriesti, DDS Memphis, TN USA

. 4 mm (I. D. ) . 6 mm (I. D. ) . 8

. 4 mm (I. D. ) . 6 mm (I. D. ) . 8 mm (I. D. ) 1. 3 mm (I. D. ) Core Drills Sold Separately. Y See Instructions for Use. Phone: (855) 737 -9477 Outside USA: +1 -619 -470 -2375 www. sdswiss. com © 2007. No unauthorized reproductions without prior consent of San Diego Swiss Machining, Inc. IRS® is a registered trademark of San Diego Swiss Machining, Inc. Patent number 6, 227, 855 and other patents pending.

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