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DRProTaper is the rotary file system we use for shaping root canals during RCT. It follows a crown-down technique and each file has a specific indication in the sequence. The color-coding makes it super easy to remember, but there’s so much more to it than just following colors!
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Let’s learn about it in detail :
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SX (Yellow - Shaper X):
This is an orifice opener at 19mm length with 4%-19% taper. Use it to open the orifice and create coronal shaping. It’s great for pre-flaring and easy canal location, but never use it till full length.
S1 (Purple Band):
ISO #17, 2%-11% taper, comes in 21, 25, or 31mm. This file does the initial shaping of coronal and middle thirds. It should NEVER be skipped and ALWAYS goes to full working length. It fits the 4% taper used in small canals like palatal in upper molars, distal in lower molars, and upper central incisors.
S2 (White Band):
ISO #20, 4%-11% taper, same lengths. Used for further shaping of middle and apical thirds. You can actually skip this if S1 has already prepared the middle third adequately.
F1 (Yellow Band):
ISO #20, 7% fixed taper, 21/25/31mm. This is where apical enlargement begins after shaping. Don’t force it, use gentle apical motion, and it usually finishes as enough till F1 for most cases.
F2 (Red Band):
ISO #25, 8% taper, same lengths. Enlarges the canal further after F1. You can skip to F2 if F1 is enough for finishing the apical third.
F3 (Blue Band):
ISO #30, 9% taper, 21/25/31mm. Used the full working length for palatal/distal canals in upper centrals and incisors. Mainly used for larger canals to create proper taper.
F4 & F5 (Black Bands):
ISO 40 (6% taper) and 50 (5% taper). Both rarely used - only for very large canals when you need that extra shaping.
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If you’re struggling with rotary endodontics protocols or want a quick reference during procedures, don’t forget to check out my book ‘ A CLINICAL GUIDEBOOK ON ENDODONTICS’ by Dr. Shweta Chaudhary.
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Comment ‘book’ and I shall DM you the link!
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(Endodontics, protaper system, file system
@drshwetachaudhary._
