Atrophy of the dental bed refers to the atrophy of the gums and the periodontal tissue beneath them. The main manifestation of dental bed atrophy is the loosening of teeth, the decline of chewing function, often appearing to be unable to bite or chew, or slow chewing food, the teeth are getting longer and longer, the roots of the teeth are exposed, often appearing to be painful or sour, can not be stimulated by hot, cold, sour or sweet, and so on. If the atrophy of the dental bed continues to develop, the teeth will be lost. Bed recession is mainly caused by periodontal disease, a single inflammatory disease or inflammation of a part of the mouth, can also cause bed recession, when timely treatment, most of the bed recession symptoms will return to normal. There is also a possibility that periodontal disease stimulates the alveolar bone, resulting in the resorption of the alveolar bone and the formation of severe periodontal tissue atrophy, and this destruction is irreversible. When periodontal disease occurs, you should actively seek medical consultation with a periodontal specialist, timely periodontal treatment, and maintain oral hygiene. Usually, you should pay attention to oral hygiene and develop proper brushing habits. When the dental bed atrophy should go to the hospital as soon as possible to check, clarify the cause of atrophy, usually pay attention to oral care, reduce the occurrence of dental bed atrophy.