Patient-friendly definition from the DentistsDirectory.org dental glossary.
Dry socket (alveolar osteitis) is a painful complication that can occur after a tooth extraction. Normally, a blood clot forms in the socket immediately after extraction, protecting the underlying bone and nerve endings while the site heals. In dry socket, this clot either fails to form, dissolves prematurely, or is dislodged — leaving the bone and nerve directly exposed to air, food, and bacteria.
Dry socket typically develops two to four days after extraction, after the immediate post-procedure discomfort would normally be subsiding. The hallmark symptom is severe, throbbing pain that radiates to the ear, temple, or neck on the affected side — often described as much worse than the original extraction pain. Visually, the socket may look empty or grey rather than having a dark red clot, and there is often an unpleasant taste and odour. Dry socket occurs in roughly 2–5% of all extractions, but the risk rises to approximately 25–30% for lower wisdom tooth extractions.
Dry socket requires a dental visit — it does not resolve on its own without treatment. Your dentist will gently irrigate the socket to remove debris and place a medicated dressing (typically containing eugenol, a clove oil compound) that provides significant pain relief within minutes. Dressings may need to be changed every few days until the socket heals. To reduce risk: avoid smoking for at least 72 hours after extraction (smoking is the single largest risk factor), do not drink through a straw, avoid vigorous rinsing for the first 24 hours, and follow all post-operative instructions carefully.