Wisdom teeth are the third molars, one on each side of the alveolar bone, which are the third largest teeth from the outside in. It usually starts to grow after puberty, and is seen as a symbol of “wisdom coming”, so it is called “wisdom tooth”. If it grows quietly like other teeth, it is a merit. But when it comes to wisdom teeth, many people are “a sorrowful tear”. A random inflammation will torture people to eat badly, sleep badly, and hurt like hell. Many people can’t stand it anymore, so they have to pull it out to stop the problem forever. Do wisdom teeth have to be extracted? If the wisdom teeth are in the right position and direction, you can consider keeping them, even if they are covered by gums, you can perform gingivectomy to let them erupt healthily. However, if you have a different type of wisdom tooth – an obstructive tooth – you will have to remove it. The crown is covered by gums, and when the resistance decreases, or if the mouth is on fire, it can cause pericoronitis, and this is how the torture begins. Many people face wisdom teeth, are able to delay, really pain is unbearable, go to the drugstore to buy some anti-inflammatory drugs, painkillers to solve the problem. But this is a method of treating the symptoms but not the root cause, at best, it can only solve the pain for a while, wisdom tooth pain may come back at any time. Therefore, wisdom tooth pain must be taken seriously, it is recommended to go to the dental clinic to take a dental film to see whether the wisdom tooth is gum coverage or obstructive teeth, and then decide to pull or not pull it! It is worth mentioning that, due to the high technical content and difficulty of the extraction of obstructive teeth, if you want to remove them, you must go to a regular dental hospital. These situations must be extracted! Wisdom teeth obstruction if not taken seriously, it will cause a variety of destructive effects, such as, gum inflammation around the wisdom teeth, gum inflammation caused by long-term periodontitis, acute inflammation led to inflammation of the jaw soft tissues, adjacent teeth easily stationed bad and so on. The reason for this is that wisdom teeth are at the very end of the jawbone, and the surface of the blocked wisdom teeth is covered by gums, which is not easy to clean and prone to local inflammation. 1, infringement of adjacent teeth wisdom teeth must be extracted: usually wisdom teeth erupting space is insufficient, and will fall on the second molar, thus causing the second molar cleaning is not easy, or even the phenomenon of partial absorption of teeth, resulting in patient discomfort or toothache. 2, wisdom tooth decay must be extracted: In addition to the simple occlusal surface decay not deep can be filled, those adjacent surface decay, need very good technology, as well as decay very deep, and even need root canal treatment, we always recommend extraction, to eliminate future problems. 3.Wisdom teeth without opposing teeth must be extracted: If there is no opposing wisdom tooth to oppose the wisdom tooth, sometimes excessive eruption of the wisdom tooth will occur, which will affect the bite. 4. Wisdom teeth with insufficient space for growth must be extracted: Wisdom teeth belong to the fading state in the evolutionary history of human beings. Therefore, the dental arch is also getting smaller and smaller, and the lack of space is very common. The swelling and painful sensation can be felt most at the time of eruption. Many people decide to pull out their wisdom teeth because they cannot tolerate this painful feeling. 5, the obstructed teeth must be extracted: usually buried in the alveolar bone, if it will be painful, or if the diagnosis will have a lesion occur, it is necessary to remove. 6. Wisdom teeth that are difficult to clean must be extracted: Due to the lack of space, wisdom teeth often grow crooked, thus often causing difficulties in cleaning teeth and resulting in tooth decay.