Endodontics · single question

After a fall: #8 has enamel/dentin/pulp fracture at the incisal angle; #9 is in multiple pieces with the fracture extending to the root. Diagnoses are:

  1. #8 uncomplicated; #9 complicated crown fracture
  2. #8 complicated crown fracture; #9 crown-root fracture
  3. #8 root fracture; #9 uncomplicated crown fracture
  4. #8 crown-root fracture; #9 complicated crown fracture
Show answer and explanation

Correct answer: B. #8 complicated crown fracture; #9 crown-root fracture

  • A. #8 involves the pulp, so it is complicated, not uncomplicated.
  • B. Correct. #8 = complicated crown fracture (enamel+dentin+pulp); #9 = crown-root fracture (fracture extends from crown into the root).
  • C. #8 is not a root fracture; the description is a crown fracture exposing pulp.
  • D. #8 is a crown (not crown-root) fracture, so this pairing is incorrect.

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