How to see the age of the dachshund

How can I tell the age of a dachshund? To determine the age of dachshunds, judging from the teeth is the most accurate, dachshunds about 20 days after birth to grow milk teeth, 3-4 months to start tooth replacement, about one year old to complete tooth replacement and grow all permanent teeth, 3-4 years old will have slight wear and tartar, 5-6 years old wear obvious, 7-8 years old teeth began to lose. Dental condition at age 19-28 days Mammary incisors emerge 21-28 days 3rd premolar emerge 21-35 days Mammary canine emerge 21-42 days 4th premolar emerge 28-42 days 2nd premolar emerge 2 months of age All mammary teeth emerge 3-4 months of age Replacement of 1st and 2nd incisors, permanent incisors emerge 4-5 months of age Replacement of 1st premolar, permanent premolar emerge 4-6 months of age Replacement of canine teeth Replacement of 2nd premolars, permanent teeth 4-7 months old Replacement of 2nd premolars, permanent teeth 5-6 months old Replacement of 3rd incisors, permanent teeth 5-7 months old Complete replacement of 2nd, 3rd, 4th permanent premolars 6-9 months old Complete replacement of 3rd permanent posterior molars in the mandible 9-10 months old Complete replacement of all permanent teeth 1.5 years old Complete replacement of permanent teeth, white, shiny, incisors with cusps 1.5 years old Wear on the tips of 1st incisors in the mandible 2.5 years old 2nd incisors in the mandible Wear at the tip of the maxillary 1st incisor 3.5 years old Wear at the tip of the maxillary 2nd incisor 4.5 years old Wear at the tip of the mandibular 3rd incisor 5 years old Wear at the tip of the mandibular 3rd incisor 6 years old Wear at the tip of the mandibular 3rd incisor 6 years old Bluntly rounded canines, worn mandibular incisors 8 years old Wear at the tip of the mandibular 1st incisor 10 years old Oval-shaped grinding surfaces of the mandibular 2nd and maxillary 1st incisors -15 years old Loss of incisors, incomplete teeth 16-20 years old Loss of canine teeth Overall, age can be determined by observing the Dachshund’s facial expressions, posture, coat, etc., and also by looking at the dog’s teeth. Dachshunds do not get all their teeth until they are about one year old; at two years old, there is already a small amount of lithic scale on their teeth; at three to four years old, their teeth already have visible traces of lithic scale and yellow spots, and there is wear on the incisors of the lower jaw; at five years old, the Dachshund’s large teeth already have visible wear marks; at about six years old, the dog’s teeth have begun to weaken; at seven to eight years old, the Dachshund’s teeth appear loose and have Some incisors are beginning to fall out.