Many adults have problems with wisdom teeth. Most adults think that wisdom teeth do not prevent them from eating, so they do not have to worry about them. In fact, in many cases, if the wisdom teeth do not grow out, it is very affected their lives. The wisdom of the wisdom of the wisdom of the teeth can not be cleaned, eating old plug, over time there will be inflammation, pain and other problems, so many people think of the wisdom of the wisdom of the teeth to be removed. So, what are the cases of wisdom teeth that should be extracted? In life, there are often many people ask: should I have my wisdom teeth removed? Usually, our oral surgeon will recommend the extraction of wisdom teeth for the following reasons: 1. Tooth decay: If the wisdom teeth are decayed, except for the simple decay on the occlusal surface which is not deep enough to be filled, we always recommend the extraction of those adjacent decayed teeth which require good technology, as well as those which are decayed deeply and even need root canal treatment, so as to eliminate future problems. 2. Invasion of adjacent teeth: Usually the patient is not aware of it, but the dentist can diagnose it by X-ray. Usually there is not enough space for the wisdom teeth to erupt and they fall on the second molars, thus causing the second molars to be difficult to clean and even partial resorption of the teeth, causing discomfort or toothache to the patient. 3, lack of space: wisdom teeth in the evolutionary history of mankind, is a state of fading. Therefore, the dental arch is also getting smaller and smaller, and the lack of space is very common. The swelling and painful feeling can be felt most when taking eruption. Many people decide to remove their wisdom teeth because they cannot tolerate this painful feeling. 4.It is not easy to clean: Due to the lack of space, wisdom teeth often grow crooked, so it is often difficult to clean teeth, resulting in the occurrence of tooth decay. 5. No pair of teeth: As mentioned earlier, not everyone’s four wisdom teeth will grow together. Therefore, if there is no opposing wisdom tooth to bite the opposite side of the wisdom tooth, sometimes excessive eruption of the wisdom tooth will occur, which will affect the bite. 6, obstructed teeth: usually this is the most annoying kind, the dentist will find it difficult to fix, but the patient does not necessarily feel, so ignored. This type of tooth, usually buried in the alveolar bone, needs to be removed if it is painful or if a lesion is diagnosed. What should I pay attention to after wisdom tooth extraction? If you want to have your wisdom teeth removed, you should always see a professional dentist. What should I pay attention to after tooth extraction? 1. Usually, the longer the extraction takes, the longer the swelling will be, especially for obstructed teeth. 2. Within one hour, all blood and saliva should be swallowed. Do not rinse your mouth to help blood clotting and wound recovery. 3.After going home, first apply ice pack for one hour, and if there is discomfort after 48h, then use hot pack. 4.If you have fever imagination, you can take sick leave to rest the next day.