A small hole above the gums is usually a result of caries in the neck of the tooth near the gums. Caries is an infectious disease caused by a number of factors, such as bacteria, which causes the destruction of the hard tissues of the teeth. Caries, commonly known as tooth decay, is a disease that causes progressive destruction of the hard tissues of the teeth due to a variety of factors, including bacterial infection. Patients in the early teeth will appear white plaque or yellow-brown spots, with the development of caries cavity is getting bigger and bigger, will lead to a small hole in the gums above, and in serious cases will also trigger gingivitis, periapical periodontitis and a series of complications. For patients suffering from caries, it is necessary to take appropriate ways to deal with different degrees of caries. For those who do not have dental tissue loss in the early stages, non-surgical treatment can be chosen. If there is tissue loss, you need to choose surgical restorative treatment. There is a small hole above the gums is mainly caused by caries, it is recommended that patients seek medical examination, a clear diagnosis, choose the appropriate way to deal with.