Loose teeth with periodontitis do not necessarily need to be extracted, and they are not extracted as much as possible if they can be. Generally all normal teeth are very precious and the main principle is to try to preserve them, whatever the situation, when it is possible to do so. Periodontitis is a clinically more common generalized disease of the whole mouth periodontal, whose typical manifestations are attachment loss, gum recession, alveolar bone resorption, and finally, loosening and loss of teeth. It is the primary risk factor for full-mouth tooth loss in the Chinese population and often occurs in middle and old age.