Wisdom tooth removal — also called third molar extraction — is a common oral surgical procedure to extract one or more of the four permanent adult teeth located at the back corners of the mouth. Because many patients lack sufficient jaw space to accommodate these teeth, extraction is frequently recommended to prevent or resolve a range of dental complications before they become severe.

Why Wisdom Teeth Are Removed

Third molars typically erupt between ages 17 and 25, often without adequate room in the dental arch. When insufficient space prevents full eruption, the tooth becomes impacted — partially or fully trapped within the jawbone or overlying gum tissue. Impacted teeth are prone to infection, cyst formation, and structural damage to adjacent second molars.

Common indications for removal include:

• Pericoronitis — infection or inflammation of the gum tissue partially covering an erupting tooth
• Tooth decay in the wisdom tooth or the neighboring molar due to poor cleaning access
• Crowding or shifting of surrounding teeth that compromises occlusion
• Follicular cyst development around an unerupted crown
• Root resorption of the adjacent second molar

The Extraction Procedure

Simple extractions apply when the tooth has fully erupted: the clinician loosens it with a dental elevator and removes it with forceps. Surgical extractions — required for impacted teeth — typically involve incising the gum, removing overlying alveolar bone, and sectioning the tooth into smaller pieces for easier retrieval. Local anesthesia is standard; nitrous oxide or IV sedation may be used for patient comfort or particularly complex cases.

Recovery and Potential Complications

The extraction socket typically heals within one to two weeks. Patients should avoid smoking, using straws, and eating hard foods to protect the blood clot forming within the socket. Dislodging this clot leads to alveolar osteitis — commonly called dry socket — a painful condition that delays healing and requires clinical management.

For lower wisdom teeth, the inferior alveolar nerve runs in close proximity to the tooth roots, making pre-operative radiographic assessment essential. Temporary or, rarely, lasting numbness is a recognized risk that clinicians weigh carefully before proceeding with mandibular extractions.

Evaluating third molar development in the mid-teen years allows clinicians to plan removal before roots are fully formed, reducing surgical complexity and minimizing the risk of nerve involvement.