Wisdom teeth that are not extracted can result in recurrent pericoronitis, decay and loosening of neighboring teeth. 1. Wisdom teeth are the third molar from the alveolar bone in the human mouth, counting inward from the central incisors to the eighth. 2. It is recommended to remove wisdom teeth, especially those that are blocked. Obstructed wisdom teeth are defined as wisdom teeth that have formed crowns and have a significantly insufficient eruption space between them; wisdom teeth that have crowns with an inclination angle of more than 35°; and wisdom teeth that have crowns that are located underneath the mandibular second molars. 3. Due to the angle of growth and difficulty in cleaning the wisdom teeth, it may cause complications such as recurrent pericoronitis, caries and loosening of neighboring teeth, and increased crowding of the teeth. It is recommended that people who have erupted wisdom teeth or have pain in the back of the gums should consult a doctor in a timely manner, so that a professional doctor can determine whether there is the presence of blocked wisdom teeth and decide whether or not to remove them.