Vertical wisdom teeth need to be extracted in the following cases: 1. No opposing teeth exist and gradually elongate to form early contact or jaw interference, which should be extracted as early as possible to avoid temporomandibular dysfunction. 2. Food impaction often occurs between wisdom teeth and neighboring teeth, leading to acute gingival papillitis attack, which needs to be extracted. 3. Deep cavities or large defects exist in the crown of wisdom teeth, which cannot be repaired, and cold or hot stimulation causes 4.Wisdom teeth with pulpitis or periapical inflammation need to be extracted because thorough root canal treatment is not possible due to the large variation of the apical system. 5.X-ray shows that wisdom teeth have formed apical cysts and granulomas, and only extraction can completely cure them.