Riggs' disease

Overview
Riggs' disease, also known as pyorrhea of a toothsocket or gingivitis expulsiva, is a purulent inflammation of the dental periosteum named after American dentist John M. Riggs (1810–1885).

Riggs' disease produces the progressive necrosis of the alveoli and looseness of the teeth. The teeth may become very loose and fall out of the sockets.