Question 203 (part 2) · LDEK · Post and core restorations

The most beneficial stress distribution among all prefabricated posts, provide following posts:

  1. A. tapered.
  2. B. parallelepiped.
  3. C. double tapered (double convergent).
  4. D. threaded.
  5. E. cut in apical part.
Hint

Compare how a wedge-shaped post and a post of uniform diameter transmit occlusal load to the canal walls.

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