Question 158 · LDEK · Access and canal preparation
The technique of root canal preparation based on a 90°-180° clockwise rotation of the instrument and then a 120°-180°counterclockwise rotation is called:
- A. anticurvature filing technique.
- B. circumferential filing technique.
- C. reaming technique.
- D. filing technique.
- E. balanced force technique.
Hint
This technique balances a clockwise engaging rotation with a counterclockwise cutting rotation under apical pressure to keep the file centred.
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