Wisdom teeth that grow horizontally are usually horizontally blocked in position, and the extraction is mainly divided into steps such as anesthesia, flap turning, bone removal, root splitting, and suturing. 1. Anesthesia: usually choose the lower alveolar nerve block + buccal nerve block + lingual nerve block one anesthesia, the anesthesia effect is good, long time. 2. Flap: For horizontally blocked wisdom teeth, usually auxiliary buccal and distal mesial incisions are needed to expose the teeth and expand the field of view. 3. Bone removal: Remove the bone around the horizontally blocked wisdom tooth by ultrasonic bone cutter or dental handpiece. 4. Root splitting: Separate the crown and root of the tooth and take it out in sections. 5. Suturing: After complete removal of the wisdom tooth, the socket is cleaned, then sutured and pressure is applied to stop bleeding. Wisdom teeth that are horizontally impeded can cause caries in the distal and middle of the second molar as well as react with inflammation, and it is recommended that they be removed as early as possible.