Tooth extraction is the clinical removal of a tooth from its alveolar socket, performed when the tooth cannot be adequately restored through restorative or endodontic treatment. It is one of the most commonly performed dental procedures, ranging from the straightforward removal of a fully erupted tooth to complex surgical intervention for impacted or severely compromised teeth.
Types of Extraction
Simple extraction is performed on a tooth that is fully visible in the mouth. The clinician uses a dental elevator to loosen the tooth, expand the socket, and deliver the tooth with forceps.
Surgical extraction is required when a tooth has not fully erupted through the gingiva, is broken at or below the gumline, or has roots that are curved, fused, or otherwise difficult to remove in one piece. It is the standard approach for impacted third molars and is typically performed by an oral surgeon.
Common Indications
- Extensive caries that has destroyed too much tooth structure to support a crown or filling
- Advanced periodontal disease that has severely degraded the periodontal ligament and the surrounding alveolar bone
- Impacted wisdom teeth causing pain, recurrent infection, or crowding of adjacent teeth
- Orthodontic treatment requiring space creation within the dental arch
- A vertically or obliquely fractured tooth that cannot be restored
Procedure and Recovery
Local anesthesia is administered to numb the tooth and surrounding tissue before the procedure begins. The clinician severs the periodontal ligament, expands the alveolar socket, and removes the tooth — sometimes sectioning it into segments for complex cases. A blood clot forms in the empty socket and is essential to normal healing. Patients are advised to avoid smoking, using straws, or disrupting the clot, as dislodgment can lead to alveolar osteitis (dry socket), a painful complication that delays healing.
Once a tooth is removed, the surrounding alveolar bone begins to resorb, which can gradually shift neighboring teeth and alter the bite. Discussing a replacement option — such as a dental implant, fixed bridge, or removable partial denture — promptly after extraction is an important step toward preserving long-term oral function and preventing bone loss.