There is no after-effects of wisdom teeth extraction, but there may be limited mouth opening, swelling and pain after wisdom teeth extraction, and a few people have nerve damage. 1. Restricted opening of the mouth: the first three days after wisdom teeth extraction may lead to the phenomenon of restricted opening of the mouth, thus affecting the eating, can only take liquid food as the main, usually with the passage of time will gradually improve. 2. Swelling and pain: Wisdom teeth extraction is an invasive operation, so it may cause significant swelling and pain, if the trauma is more serious, the swelling and pain may be prolonged, you should do a good job of postoperative care and medication as prescribed by the doctor. 3. Nerve damage: If the wisdom teeth are next to the nerve of the tooth, the extraction of wisdom teeth may also lead to nerve damage, but usually later will gradually recover. It is recommended to choose a regular hospital to ensure the efficacy and safety of the extraction.