How can I tell the size of my Labrador puppy? Generally speaking, Labrador puppies grow their teeth gradually and unevenly in about 20 days after birth; by 30-40 days, their milk incisors will gradually grow; at 4 months of age, the first milk incisors will be replaced; at 8 months of age, all the teeth will be replaced with permanent teeth; when Labrador puppies are 1 year old, the permanent teeth will grow. The specific age of a pet dog can be judged by the specifics of the teeth. The same method can be applied for determining the age of a Labrador puppy. As the age of the Labrador puppy changes, the growth and wear of the teeth will also appear in a different state. Generally speaking, the Labrador puppy’s teeth will gradually grow unevenly in about 20 days after birth; by 30-40 days, its milk incisors will gradually grow together; at 2 months of age, all the milk teeth will grow together and the teeth will be fine and white; at 4 months of age, the first milk incisor will be replaced; at 5-6 months of age, the second and third milk incisors and all the milk teeth will be replaced; at 8 months of age, all the teeth will be replaced with permanent teeth; when the teeth are replaced with permanent teeth. At the age of 1.5 years, the cusps of the first incisors of the lower jaw are worn out; at the age of 3.5 years, the cusps of the first incisors of the upper jaw are worn out; at the age of 5 years, the cusps of the third incisors of the lower jaw are slightly worn out, while the first and second incisors of the lower jaw are worn in a rectangular shape; at the age of 7 years, the first incisors of the lower jaw are worn to the roots of the teeth, and the worn surface is longitudinally oval; At the age of 10 years, the second incisor of the lower jaw and the first incisor of the upper jaw are worn in a longitudinal oval shape; at the age of 12-13 years, Labrador puppies lose their incisors and enter the old age stage with incomplete canines.
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