Wisdom Teeth Removal Complications: What to Watch For

Dry Socket (Alveolar Osteitis)

Dry socket is the most frequently reported complication following wisdom tooth extraction. It occurs when the blood clot that forms in the extraction socket is dislodged or dissolves before the wound has healed. Without this protective clot, the underlying bone and nerve endings are exposed to air, food, and bacteria.

Dry socket typically develops 2 to 4 days after surgery. The primary symptom is severe, throbbing pain that radiates from the socket toward the ear or temple on the same side. You may also notice a bad taste or odor coming from the socket. The pain from dry socket is distinctly worse than normal post-surgical discomfort.

Treatment involves your oral surgeon placing a medicated dressing into the socket to protect the exposed bone and relieve pain. This dressing is usually changed every few days until the tissue begins to heal over the site. Most dry socket cases resolve within 7 to 10 days of treatment.

Post-Surgical Infection

Infection after wisdom teeth removal occurs in roughly 1% to 4% of cases. Bacteria can enter the surgical site during or after the procedure, particularly if food debris becomes trapped in the healing socket.

Signs of infection include pain that worsens after the first 3 to 4 days instead of improving, swelling that increases rather than decreases, fever above 101 degrees Fahrenheit, pus draining from the extraction site, and a persistent foul taste that does not improve with gentle rinsing. If you notice these symptoms, contact your oral surgeon. Treatment typically involves antibiotics and possibly drainage of the infected area.

Prolonged Swelling and Bruising

Some swelling after wisdom teeth removal is normal and expected. It typically peaks around day 2 to 3 and then gradually improves. In some patients, swelling persists beyond a week or is accompanied by bruising that extends down the jaw and neck.

Prolonged swelling is more common with impacted teeth that require bone removal during extraction. Applying ice packs during the first 24 to 48 hours and keeping your head elevated while resting can help minimize swelling. If swelling continues to worsen after day 4, contact your surgeon to rule out infection or a hematoma.

Excessive Bleeding

Light bleeding and oozing for the first 24 hours is normal. Some patients experience heavier bleeding that does not stop with gentle pressure on gauze pads. This can occur if the blood clot fails to form properly, if you engage in strenuous activity too soon, or if you take blood-thinning medications.

If bleeding persists beyond 24 hours or is heavy enough to fill your mouth rapidly, apply firm pressure with a fresh gauze pad for 30 minutes. If it still does not stop, contact your oral surgeon. In rare cases, the surgeon may need to place additional sutures or apply a hemostatic agent to control the bleeding.

Nerve Damage (Paresthesia)

The roots of lower wisdom teeth sit close to two important nerves: the inferior alveolar nerve (which provides sensation to the lower lip and chin) and the lingual nerve (which provides sensation and taste to the tongue). During extraction, these nerves can be stretched, compressed, or in rare cases, severed.

Nerve damage causes numbness, tingling, or altered sensation in the affected area. Studies report temporary nerve injury in roughly 1% to 5% of lower wisdom tooth extractions. Most cases resolve on their own within weeks to months. Permanent nerve damage occurs in less than 1% of extractions but can result in lasting numbness or altered sensation.

Sinus Communication (Oroantral Fistula)

Upper wisdom teeth sit close to the maxillary sinus. During extraction, a small opening between the mouth and the sinus cavity can occur. This is called an oroantral communication.

Symptoms include air passing between the nose and mouth, fluid coming through the nose when drinking, or a sensation of pressure in the cheek. Small openings often close on their own within a few weeks if you follow your surgeon's instructions, which typically include avoiding blowing your nose, sneezing with your mouth open, and not using straws. Larger openings may require a minor surgical repair.

Jaw Fracture

Jaw fracture during wisdom tooth removal is rare, occurring in fewer than 1 in 1,000 extractions. It is most likely in older patients with dense bone, deeply impacted teeth, or teeth with roots that extend near the lower border of the jaw. A fractured jaw typically requires surgical repair with plates and screws and a period of restricted jaw movement during healing.

Your oral surgeon evaluates this risk using X-rays or CBCT imaging before the procedure. If the risk of fracture is elevated, they may modify their surgical approach or discuss the risk with you in detail beforehand.

Damage to Adjacent Teeth

In some cases, the second molar next to the wisdom tooth can be chipped, loosened, or have its filling or crown damaged during the extraction. This risk increases when the wisdom tooth is tightly positioned against the neighboring tooth. If damage occurs, it usually requires a filling or crown repair on the affected tooth.

Before Surgery

• Disclose all medications, supplements, and health conditions to your oral surgeon.
• Stop smoking at least 1 to 2 weeks before the procedure if possible.
• Arrange for someone to drive you home if you will be under sedation or general anesthesia.
• Stock up on soft foods and have ice packs ready at home.

After Surgery

• Do not smoke for at least 72 hours after extraction, and ideally for 1 to 2 weeks.
• Avoid using straws for the first week. The suction can dislodge the blood clot.
• Eat soft foods and avoid chewing near the extraction site for the first several days.
• Rinse gently with warm salt water starting 24 hours after surgery to keep the area clean.
• Take prescribed antibiotics as directed, completing the full course even if you feel fine.
• Avoid vigorous exercise for 3 to 5 days after surgery to reduce bleeding risk.