JVD 2018 #1 - Transposition of Mandibular Molars in a Dog

Question 1

What are complete and incomplete transposition?

Answer 1

Complete is a total switch of crown and root to another tooth’s position, incomplete is root in correct position, but 2 crowns basically cross over anad erupt in the wrong place.

Question 2

What is the cause of this anomaly?

Answer 2

• unclear,
  
  • may be genetic or
  • environmental (DT/P, trauma, migration during eruption
  • homeotic variation= taking on characteristic of another tooth during development, or actual transposition of tooth germs