Ursus (genus) Ursus is a genus in the family Ursidae (bears) that includes the widely distributed brown bears, the polar bear, and black bears. The name is derived from the Latin ursus, meaning bear. Species and subspecies of Ursus.
A dry socket is caused by the partial or total loss of a blood clot in the tooth socket after a tooth extraction. Normally, after a tooth is extracted, a blood clot will form as the first step in healing to cover and protect the underlying jawbone. If the blood clot is lost or does not form, the bone is exposed and healing is delayed. In general, a dry socket is a result of bacterial, chemical, mechanical, and physiologic factors.
A dry socket can occur within three days after an extraction after a blood clot falls out of the socket. Without the blood clot present, the bone is exposed, which is extremely painful. A dry socket causes radiating pain up and down the face and pain upon drinking cold water or breathing in cold air. It is imperative to keep the blood clot in the socket until the bone has a chance to fill the socket and essentially heal. Without the blood clot, the socket will take longer to heal and it will be quite painful during that period of time. A dry socket is exposed bone â some of the worst pain there is.