Dry socket (alveolar osteitis) is a painful dental condition that sometimes happens after you have a permanent adult tooth extracted. Dry socket is when the blood clot at the site of the tooth extraction fails to develop, or it dislodges or dissolves before the wound has healed.
Normally, a blood clot forms at the site of a tooth extraction. This blood clot serves as a protective layer over the underlying bone and nerve endings in the empty tooth socket. The clot also provides the foundation for the growth of new bone and for the development of soft tissue over the clot.
Exposure of the underlying bone and nerves results in intense pain, not only in the socket but also along the nerves radiating to the side of your face. The socket becomes inflamed and may fill with food debris, adding to the pain. If you develop dry socket, the pain usually begins one to three days after your tooth is removed.
Dry socket is the most common complication following tooth extractions, such as the removal of third molars (wisdom teeth). Over-the-counter medications alone won't be enough to treat dry socket pain. Your dentist or oral surgeon can offer treatments to relieve your pain.
Signs and symptoms of dry socket may include:
- Severe pain within a few days after a tooth extraction
- Partial or total loss of the blood clot at the tooth extraction site, which you may notice as an empty-looking (dry) socket
- Visible bone in the socket
- Pain that radiates from the socket to your ear, eye, temple or neck on the same side of your face as the extraction
- Bad breath or a foul odor coming from your mouth
- Unpleasant taste in your mouth
The precise cause of dry socket remains the subject of study. Researchers suspect that certain issues may be involved, such as:
- Bacterial contamination of the socket
- Trauma at the surgical site from a difficult extraction, as with an impacted wisdom tooth
Factors that can increase your risk of developing dry socket include:
- Smoking and tobacco use. Chemicals in cigarettes or other forms of tobacco may prevent or slow healing and contaminate the wound site. The act of sucking on a cigarette may physically dislodge the blood clot prematurely.
- Oral contraceptives. High estrogen levels from oral contraceptives may disrupt normal healing processes and increase the risk of dry socket.
- Improper at-home care. Failure to follow home-care guidelines and poor oral hygiene may increase the risk of dry socket.
- Having dry socket in the past. If you've had dry socket in the past, you're more likely to develop it after another extraction.
- Tooth or gum infection. Current or previous infections around the extracted tooth increase the risk of dry socket.
Painful, dry socket rarely results in infection or serious complications. However, potential complications may include delayed healing of or infection in the socket or progression to chronic bone infection (osteomyelitis).