Question 82 · LDEK · Root canal obturation

To obtain better apical seal of the master gutta-percha point, its apical part can be solvent-softened before placing it into the root canal. What are the indications for this method?

  1. A. very narrow, obliterated root canals.
  2. B. root canals with a very large apical portion.
  3. C. root canals with a lateral root perforation in the coronal one-thirds of the root.
  4. D. root canals with a perforation in the middle one-thirds of the root.
  5. E. root canals with internal resorption.
Hint

Consider when a standard cone fails to achieve tug-back and needs to be custom-shaped to the apical anatomy.

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