If the calculus is only pressing on the gums, the gums will usually recover after cleaning. If the calculus makes the gums shrink, the gums usually cannot recover after cleaning. 1. If the calculus is relatively small, the formation time is relatively short, etc., the calculus may only be on the gums to a certain extent of compression, did not make the gums appear obvious damage. In this case, the gums can be slowly restored to their normal height after the calculus is removed. 2. If the calculus is relatively large, the formation of a long time and other factors, resulting in calculus caused by the gums, alveolar bone and other shrinkage. In this case, after the calculus is cleaned, the gums generally can only maintain the current state, and can not be restored. The emergence of dental calculus, need to go to the regular hospital by a professional doctor to deal with, do not blindly scrape their own, to avoid the counterproductive consequences.