Nowadays, many people have the habit of celebrating their dogs’ birthdays. When a puppy comes into the house, they want to record its growth trajectory, but they don’t know how old it is. It seems not very accurate to judge the age of a puppy by its appearance. , and it is much more objective to judge the age of a puppy through the development of its teeth.

Puppies’ teeth are called deciduous teeth. Before they become permanent teeth (42 teeth), there are a total of 28 deciduous teeth. The teeth of the deciduous teeth are as follows:

Incisor teeth: 3*2/3*2 Canine teeth: 1*2/1*2 Premolars: 3*2/3*2

Puppy age and dental status

19 to 28 days old, milk incisors are born;

21 to 28 days old, the third milk premolar is born;

21 to 35 days old, milk canine teeth emerge;

21 to 42 days old, the fourth milk premolar is born;

28 to 42 days old, the second milk premolar emerges;

At 2 months old, all deciduous teeth have grown;

3 to 4 months old, the first and second permanent incisors are born;

The first permanent premolar emerges at 4 to 5 months of age;

4 to 6 months old, permanent canine teeth emerge, and the first permanent rear molars of the upper and lower jaws emerge;

4 to 7 months old, the second permanent tooth emerges on its own;

The third permanent incisor emerges at 5 to 6 months of age;

5 to 7 months old, the 2nd, 3rd, and 4th permanent premolars grow in line;

6 to 9 months old, the third permanent posterior molar of the mandible emerges;

All permanent teeth are replaced after 9 months of age;

1-year-old’s permanent teeth are long, white and bright, and the incisors have pointed processes.