ORIGIN: In France, only members of the gentry were permitted to keep pigeons. In Colonial Louisiana pigeonniers were considered status symbols. Pigeonnier may be descendant of late medieval towers which ornamented. French castles and manor houses.
Dry socket is more likely to occur following a difficult tooth extraction. It is thought that excessive force applied to the tooth, or excessive movement of the tooth burnishes the bony walls of the socket and crushes blood vessels, impairing the repair process.
Dry socket is caused by a blood clot not forming properly, dissolving too quickly, or dislodging at the site of a tooth extraction before it has the chance to heal. After a tooth is pulled, a blood clot forms at the site. The clot gives the bone and nerve endings a protective coating.