Usually, healthy puppies have 28 primary teeth, and adults have 42 permanent teeth. As dogs get older, their teeth will wear out slowly and become sharp and dull. At this time, we can look at the age according to the old and new teeth, number and wear of dogs. Generally speaking, we can judge according to the following criteria:
The deciduous teeth at the front teeth are generally aligned in 30 to 40 days; By 2 months, the deciduous teeth have all grown up, and they are white and tapering; The replacement time of the first deciduous incisor is 2 to 4 months; From May to June, the second and third primary incisors and all other primary teeth began to be replaced; At the age of 8 months, all primary teeth were replaced by permanent teeth; 1 year-old, all permanent teeth are long, firm, smooth and pointed; 1 year and a half began to smooth the mandibular first incisors; The second mandibular incisors of 2 and a half years old were ground flat; The first maxillary incisors at the age of 3 and a half were ground flat; 4-and-a-half-year-old maxillary second incisors were ground flat; At the age of 5, the first and second mandibular incisors were flattened into rectangles, while the third mandibular incisors were slightly flattened. 6-year-old mandibular third incisor is smooth and blunt; At the age of 7, the wear from the first mandibular incisor to the root of the mandible was longitudinal oval; The 8-year-old mandibular first incisors were inclined and worn forward. 10-year-old maxillary first incisor and mandibular second tooth showed longitudinal oval wear. 16-year-old lost his front teeth and his canine teeth were incomplete.
Compare this picture to see how big it is. Generally, stray dogs are obedient? If you want to adopt? Why don't you give him a bath and raise a seedling first? Insect repellent Not much money? Seedling cultivation 100. Insect repellent 10 multivariate? If you take a shower, the pet store only costs 30 40? But suggest that I go to the supermarket to buy more than 30 pieces of dog shower gel, which can last for a long time? Dogs have no sweat glands? So you can't use people? Be sure to remember.