A demonstration in endodontics
was held as part of clinical certificate course in endodontics. The class was
taken by Dr. Nitin Singh. The topic of discussion was Biomechanical
preparation. Modern techniques for preparing the root canal involve a
crown-down approach to more efficiently remove infected debris and to improve
access for irrigants. The balanced-force technique, with a 60° clockwise turn
followed by a balanced anti-clockwise cutting motion, is accepted as the most
efficient method of file manipulation. Copious irrigation with an appropriate
antiseptic material is essential to clean the root canal system following
shaping of the main canals. The smear layer should be removed with an EDTA
solution before placing an intervisit dressing, or carrying out obturation.
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