Dentition in Puppies & Adults

Puppies have 28 baby teeth. 14 teeth are in the upper jaw and 14 teeth in the lower jaw. They do not have any molars or premolar 1.
When the puppy is about three to four weeks old, the milk teeth start to drop out because the permanent teeth are growing more and more upwards.

Side view of a puppy dentition

When do milk teeth leave?

Incisors 4-6 weeks
Canine 5-6 weeks
Premolars 6 weeks

When do permanent teeth grow?

Incisors 3-5 months
Canine 4-6 months
Premolars 4-5 months
Molars 5-7 months

Dentition in an Adult Dog

The Australian Cattle Dog has a scissor bite with four different types of teeth; each has its certain duty.Altogether he has 42 teeth.

Incisors- are used for cutting food, chewing,picking up objects and grooming himself or friends; these are the 6 front teeth in the upper and again 6 teeth in the lower jaw.Canines – used for holding and tearing prey/food. There are two upper and two lower canines.

Premolars – used for cutting, holding, carrying and breaking food into small pieces; these teeth are situated between the canines and molars; puppies do not have P1 teeth, only P2, P3, P4; adults have 8 premolars on the top and 8 on the bottom, 4 on each side of the upper and lower jaws

Molars
– used for grinding food into small pieces The molars are situated behind the premolars and are the last teeth in the back of the jaw; puppies do not have molars; Adults have four molars in the upper jaw, two on each side and 6 molars in the lower jaw, three on each side.


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