Gums wrapped around the teeth are usually wisdom teeth pericoronitis, gingival hyperplasia, gingivitis, and should be treated according to different etiologies, including wisdom teeth extraction, medication, and removal of dental calculus. 1. Wisdom tooth pericoronitis is due to the blockage of wisdom tooth eruption, resulting in a blind pocket around the wisdom tooth, the tooth in the blind pocket can not erupt, easy to produce bacteria and thus redness and swelling, and even limited mouth opening, at this time, should be scheduled to wisdom tooth extraction. 2. Gingival hyperplasia may be caused by taking certain medications, such as nifedipine and phenytoin sodium, resulting in excessive gum growth, which can lead to symptoms of swollen gums and bleeding gums. In such cases, you need to ask your primary care doctor if you can stop or change the medication. 3. When oral hygiene is poor, plaque buildup combined with food debris forms calculus, which irritates the gums and causes them to become red and swollen, thus encasing the teeth. In this case, you should perform supragingival scaling to remove calculus. There may be other reasons why the gums are encasing the tooth, so you should go to your local healthcare provider to find out the cause of the problem and treat it accordingly.