Which sequence correctly lists the four tooth categories in the canine dental formula from incisors to molars?

Which sequence correctly lists the four tooth categories in the canine dental formula from incisors to molars?

• A. Incisors, Canines, Premolars, Molars
• B. Incisors, Molars, Canines, Premolars
• C. Canines, Incisors, Molars, Premolars
• D. Molars, Premolars, Canines, Incisors

Answer: (A)

Think about how the teeth line up from the front to the back of the mouth. In dogs, the four tooth categories appear in this front-to-back order: incisors at the very front, followed by canines, then premolars, and finally molars at the back. This arrangement matches both their positions and their functions: incisors nip, canines grasp, premolars tear and slice, and molars grind. So the correct sequence from incisors to molars is incisors, canines, premolars, molars. Any sequence that places premolars or molars out of that back-to-front order isn’t correct.

Think about how the teeth line up from the front to the back of the mouth. In dogs, the four tooth categories appear in this front-to-back order: incisors at the very front, followed by canines, then premolars, and finally molars at the back. This arrangement matches both their positions and their functions: incisors nip, canines grasp, premolars tear and slice, and molars grind. So the correct sequence from incisors to molars is incisors, canines, premolars, molars. Any sequence that places premolars or molars out of that back-to-front order isn’t correct.