Bichon how to see the age

How can I tell the age of my Bichon Frise? You can judge the age of a Bichon Frise by the state of its teeth: the young teeth under 2 months are white and small, all the teeth are replaced and grow neatly in 3-10 months; the upper and lower incisors are gradually smoothed out at the age of 2-3 years, the lower incisors are gradually yellowed at the age of 4-5 years, and the roots are exposed at the age of 6-8 years; after the age of 8 years, the teeth begin to fall out and the dog officially enters old age. 1. 1. the state of teeth under 2 months old, 2-4 months to replace the incisors, 4-6 months to replace the canine teeth (white, rounded tips), 6-10 months to replace the molars 1 year old teeth, white and shiny, incisors without cusps 2 years old lower incisors cusps partly flattened 3 years old upper incisors cusps partly flattened, 4-5 years old upper and lower incisors began to wear slightly beveled and yellowing, 6-8 years old incisors grinding exposed roots, canine teeth yellowing wear lip dog teeth wear with age The older the age, the more severe the wear. However, it should also be seen that this has a lot to do with the nature of the animal’s food, such as often eat soft food and often gnawing bones, the dog’s teeth wear is different, so it can only be used as a reference. 2. hair state of the occurrence of old age hair refers to the emergence of gray hair (that is, the original non-gray hair of the dog becomes gray hair), first occurring in the lip area, jaw area. 4-5 years old dogs began to see a few white hair, 5-6 years old, significantly increased, and later spread to the back, around the nose. Later spread to the back, around the nose, eyelids, eyebrows, etc., and then further expanded to the forehead and the outer ear canal in the long white hair, and even the entire head hair becomes white. Dogs over 10 years old have a lot of white hair on the forehead, face and the front of the head. Over the age of 13 years, the entire head becomes white (there are individual dogs that remain the same color at the age of 10-14 years). For white, yellow and white hair or chestnut with white spotted hair of the dog, can not use the hair color change as an aid to age judgment. 3. mental state physical young dog activities when the body is light and dexterous, 2-5 years old when the activity is a little clumsy, but stable, safe and reliable. 10 years of age or older dogs, sluggish demeanor, hunchback or bent back, walking slowly. Facial expressions of dogs aged around 1 year old, with active expressions, eyes and good movement. 2-4 years old dogs, affectionate and close to people, glowing spirit, enthusiasm. Older dogs older than 7 years old, mentally sluggish, slow to respond to stimuli, reluctant to move more, eyes listless. Younger dogs have bright eyes, dogs over 7 years old have cataracts in their eyes, more incidence of cataracts over 8 years old, most dogs aged 9-10 years old have cataracts, and almost all dogs over 10 years old have cataracts. Early cataracts have a blue-green ring in the crystal body. Typically, they present as central or pericentral cataracts with cloudy gray or off-white crystals and a distinct green refractive reflection.