Do dogs change their teeth?

Dogs change their teeth. Dogs start to replace the first deciduous incisor at 2-4 months of age; they start to replace the second and third deciduous incisors and deciduous canines at 5-6 months of age; at 8 months Dogs will replace all their permanent teeth after they reach the age of 1-2 years old. Some dogs have different physical constitutions and may need to replace their teeth later. Some dogs only need to replace their teeth when they are 1-2 years old.