How many years can a dog live after losing teeth Dogs lose their teeth when they get older, and this time also indicates that they are nearing the end of their life span. Dogs usually start to show their age around 10 years old, with loose teeth and tooth loss, and dogs generally live for a year or two after they start to lose their teeth. If the owner takes proper care, such as scientific feeding, timely medical checkups, timely treatment of diseases, the dog’s life expectancy will be longer. If the dog loses teeth when only five or six years old, then most of the dog’s oral cavity problems, this to see a doctor in time, the teeth to repair.
