An impacted wisdom tooth is physically blocked from erupting into its normal position by the adjacent tooth, the jawbone, or dense overlying soft tissue. The tooth may be angled toward the second molar (mesioangular), away from it (distoangular), lying on its side (horizontal), or pointing straight up but unable to emerge through the bone (vertical impaction).

You may not know. Many impacted wisdom teeth produce no symptoms for years. They are typically discovered on routine dental X-rays or panoramic films. Symptoms, when they occur, include dull aching in the back of the jaw, swelling behind the last molar, difficulty opening the mouth, referred ear pain, or pressure on adjacent teeth.

A soft tissue impaction means the tooth has emerged from the bone but remains covered by gum tissue. A partial bony impaction means the tooth is partially covered by bone. A full bony impaction means the tooth is completely encased in jawbone with no communication to the mouth. Full bony impactions require the most bone removal to access.

Yes. A mesioangular impacted wisdom tooth can physically resorb the distal root of the adjacent second molar — sometimes destroying it beyond repair. The pressure from impaction can also cause crowding of other teeth or create a pocket between the wisdom tooth and the second molar that traps bacteria and causes decay on both teeth.

A dentigerous cyst is a fluid-filled sac that forms around the crown of an unerupted tooth. On imaging, it appears as a dark area surrounding the impacted tooth. Small cysts may not cause symptoms, but they can enlarge over time, destroying bone and displacing teeth. In rare instances, they can transform into more aggressive lesions. This is a primary reason for removing impacted teeth even when they are not painful.

A single full bony impaction typically takes 20-45 minutes of surgical time, depending on the depth, angulation, and root anatomy. All four impacted wisdom teeth can usually be removed in 60-90 minutes. IV sedation is standard for these procedures, and total office time including preparation and recovery is approximately 2 hours.

The primary risks are temporary or permanent numbness of the lower lip/chin (from inferior alveolar nerve proximity), temporary tongue numbness (from lingual nerve proximity), dry socket, infection, and bleeding. CBCT imaging allows us to quantify these risks preoperatively. When roots are directly on the nerve canal, we may recommend a coronectomy to reduce nerve injury risk.

Waiting until symptoms appear often means waiting until damage has occurred — a cyst has formed, the adjacent tooth has been damaged, or an infection has developed. Prophylactic removal of impacted wisdom teeth during the late teens or early twenties, when roots are not fully formed and bone is less dense, results in easier surgery and faster recovery.

A coronectomy removes only the crown of the wisdom tooth, leaving the roots intentionally in the jaw. It is used when CBCT shows that the roots are in direct contact with or wrapped around the inferior alveolar nerve canal. Removing the crown eliminates the risk of cyst formation and infection while avoiding the nerve injury risk of root removal. The retained roots are monitored over time.

IV sedation produces a state of deep relaxation and amnesia — you will not remember the procedure. You breathe on your own and are not intubated (this is not general anesthesia). Most patients describe it as falling asleep and waking up with the surgery complete. Dr. Ostovar is certified in IV sedation and monitors your vitals throughout.

Full bony impactions involve more post-operative swelling and discomfort than softer impactions. Expect noticeable swelling for 4-5 days, jaw stiffness for about a week, and managed pain with prescribed medication for 3-5 days. Ice packs for the first 48 hours help significantly. Most people feel substantially better by day 5-7 and are back to normal activity within 10 days.

Upper impacted wisdom teeth can occasionally be positioned near or within the maxillary sinus floor. Infection around an upper impacted tooth can spread to the sinus, causing sinusitis. During removal, there is a small risk of oroantral communication (a temporary opening between the mouth and sinus), which we manage with specific closure techniques if it occurs.

Absence of pain does not mean absence of pathology. Dentigerous cysts develop silently. Root resorption of adjacent teeth is usually painless until advanced. Periodontal pockets that form around partially impacted teeth create chronic low-grade infection. By the time symptoms appear, the damage is often substantial. CBCT evaluation determines whether your specific impacted teeth pose risks worth addressing proactively.

There is no strict age cutoff, but surgery becomes more complex with age. In younger patients, roots are shorter, bone is softer, and healing is faster. In patients over 40, roots are fully formed, bone is denser, and the risk of complications (particularly nerve injury and slow healing) increases. We remove impacted wisdom teeth in patients of all ages when indicated.

Permanent inferior alveolar nerve damage occurs in approximately 0.5-1% of lower wisdom tooth removals where roots are adjacent to the nerve canal. CBCT imaging significantly reduces this risk by revealing the exact root-nerve relationship. When the risk is high, coronectomy is recommended as the safer alternative. Temporary altered sensation resolves in most patients within weeks to months.