Toilet areas and toilet training equipment must be maintained in a sanitary condition. Each item of sleep equipment should only be used by a single child. The AAP 2000 Red Book includes a chapter on day care infections. One of the most distressing experiences for a child is to have a permanent front tooth knocked out. This may happen as a result of a sports mishap, a fall inside of the home, or other trauma.
Every tooth has a protective layer surrounding the root, which is called the periodontal ligament.
The periodontal ligament is very sensitive, and will quickly dry out and die - unless the tooth is immediately placed in a protective solution, such as milk or saline. With every minute that the tooth is left out of the mouth to dry, more cells in the periodontal ligament will die. If that isn't possible, the tooth should be placed into a protective solution. The goal of reimplanting the tooth into the socket is to preserve the health of the tooth's outer periodontal ligament. If the cells of the periodontal ligament are allowed to die, the child will eventually loose the tooth.