Normally, the neck and root of the tooth are tightly closed with a gum, which, in turn, has a light pink color and thick structure. The gum recession occurs when its volume decreases, it becomes soft, the neck of the tooth and even the root itself becomes bare at the same time. The risk of root decay increases, and hypersensitivity worries, but even these are not the most dangerous consequences: as a result of the progression of recession, resorption begins or, in simple words, bone around the tooth root disappears. The primary task of the doctor is to determine the cause of this pathology and correct gum level.