Is the tooth fairy about to make her last visit to your child? Make giving up that last baby tooth a special occasion! Children usually start to lose their teeth around the age of 6, with the last one falling out between the ages of 10 and 12. This means that by the time the last one comes out, your child probably has at least a pretty good suspicion that the tooth fairy is not real. Nonetheless, it is still a special occasion that deserves a celebration. Here are some ideas.