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.
How is a dry socket diagnosed? Diagnosis of a dry socket is based on history of dental treatment, clinical examination, and the individual's symptoms. Timing of when symptoms begin may be an indicator for a dry socket. During normal healing, the discomfort of an extraction should lessen over time. However, if the pain increases, this is an indication that healing is delayed and could possibly be due to a dry socket. Typically, symptoms for a dry socket develop two to four days after a tooth extraction.