Generally speaking, wisdom teeth that are in the right position and have opposing teeth, completely blocked wisdom teeth, and wisdom teeth that are used as abutments for missing neighboring teeth can be removed without the need for extraction. 1. If the position of wisdom teeth is correct, there is no resistance during normal eruption, and they are not blocked by the gums, neighboring teeth or jawbone, and after eruption, they can establish occlusal relationship with the opposing teeth, and they are not biased or slanted, they do not need to be extracted. 2. Wisdom teeth that are completely blocked can also be removed. That is, the jawbone is completely buried with the wisdom teeth, and the wisdom teeth have not erupted at all, and generally there is no damage to the jawbone and neighboring teeth. Completely blocked wisdom teeth may cause serious complications if they are not removed forcibly without any abnormalities. 3. If the neighboring teeth of the wisdom teeth are missing, the eruption position is not seriously deviated, it is possible to avoid extraction, and the wisdom teeth can be used as abutment teeth. Retaining wisdom teeth in this case can improve the stability of the denture, which can help the denture chew food better and give full play to its chewing function. If there is any pain or abnormality in the wisdom teeth, patients are advised to go to a professional dental hospital for examination and treatment under the doctor’s advice.