When do a dog’s baby teeth come in fully?

A dog’s baby teeth generally come in fully at around 2 months of age. Soon after, the dog enters the teething period, which runs from 3 to 8 months, during which the baby teeth gradually fall out and are replaced by permanent teeth.

During teething, supplement calcium, because a calcium deficiency can affect normal tooth replacement. The dog will also feel itchy gums and like to chew; provide chew toys or dental sticks to help.