Matinum

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Endodontic treatment (Step Back Technique) is also known as Telescopic canal preparation or serial root canal preparation. Step back technique emphasizes keeping the apical preparation small and producing a gradual taper coronally This technique was first described in 1960 by Mullaney basically this technique involves the the canal preparation into two phases phase I involves the preparation of apical constriction and phase II involves the preparation of the remaining canal Phase I Evaluate the carious tooth before initiating endodontic treatment prepare the access cavity, and locate the canal orifices Establish the working length of the tooth using pathfinder The working length is the distance between the reference point coronally and the anatomical apex two ways to determine the working length first by x ray that taken while the file is inserted in the canal In this situation Apical foramen is usually found 0.5-1mm shorter from the radiographic apex so we need to decrease the length Second by Electronic apex locators That designed to determine the canal length by giving the reading when the file tip is at the apical foramen first lubricate the instrument for use in apical area by EDTA or other lubricant Now insert the first K file into the canal with considering the working length with gentle clockwise and anticlockwise rotation of file with minimal apical pressure is given Remove the instrument and irrigate the canal Place the next larger size files to to the working length in similar manner and again irrigate the canal Don’t forget to recapitulate the canal with previous similar number of H file This breaks up apical debris which are washed away with the irrigant Repeat the process until a size 25 or 30 H-file that reaches the working length that will be the master file or Recapitulate between the files by placing it into the working length Phase II Place next file in the series to a length 1 mm short of working length remove it , irrigate and recapitulate Repeat the same procedure with successively larger files at 1 mm more shorter from the previously used file Finally, refining of the root canal is done by master apical file with push-pull strokes to achieve a smooth taper form of the root canal THANK YOU

30 thoughts on “Endodontic Treatment (Step Back Technique)

  1. hey I have question……you said that 25 master file so during obturation master cone gp is 25 or ? the last file that we use during prepartion

  2. The old school technique uses H file after conicity has been made with K files&Gates/Largo in order to smooth out the ladder. (E.g. 25-MAC 20 mm length 30-19mm, 35-18mm, 40-17 mm, 45-16 mm, after step use hypochlorite + recapitulate with K file 25 for 20 mm )The H file is the same length as MAC and same size. Further conicity created by Peeso bur. And only then you use H file 25-20 mm to smooth out the ladder.

  3. think you for this video we learn more and more so,i wanna ask you about dentine (infection) how many a limit shold remove (taitement dentine)

  4. Horrible music in the back this is an educational video for heavens sake don’t add music it’s so distracting and can’t understand a thing . ❌❌❌

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