Berning et al, Analysis of the anatomic relationship between the mandibular 1st molar roots and the mandibular canal using Cone beam CT in 101 dogs

Question 1

Describe mandibular M1 tooth in a dog

Answer 1

large 2 rooted tooth
mesial 2/3 of crown is shaped like a PM used for shearing
distal 1/3 of the crown is flat for grinding

surface area of the mesial root is larger then distal root