How to see the huskies a few months

How can I tell when a Husky is a few months old? Generally are observed through the teeth, 19-28 days milk incisors grow out, 21-42 days milk teeth grow out, 2 months old all milk teeth grow out 3-10 months to replace the permanent teeth; 1 year old permanent teeth all replaced complete; 1.5 years old open teeth have wear; 11-15 years old cut teeth fall out, teeth are not complete. Dental condition 19-28 days milk incisors grow out 21-28 days 3rd milk premolars grow out 21-35 days milk canines grow out 21-42 days 4th milk premolars grow out 28-42 days 2nd milk premolars grow out 2 months of age all milk teeth grow out 3-4 months of age replace 1st and 2nd incisors, permanent incisors grow out 4-5 months of age replace 1st milk premolars, permanent premolars grow out 4-6 months of age replace canines, grow out Permanent teeth replaced at 4-7 months of age 2nd posterior molars, grow out Permanent teeth replaced at 5-6 months of age 3rd incisors, grow out Permanent teeth replaced at 5-7 months of age 2nd, 3rd, 4th permanent premolars grow out 6-9 months of age 3rd permanent posterior molars of the mandible grow out 9-10 months of age All permanent teeth replaced at 1 year of age Permanent teeth grow out, white, shiny, incisors have cusps 1 ½ years of age 1st incisors of the mandible have wear at the tips 2 ½ years of age 2nd incisors of the mandible have At the age of 3.5 years, the tips of maxillary 1st incisors are worn. At the age of 16 years, the incisors were lost and the teeth were incomplete at the age of 16-20 years, the canines were lost