After subgingival scaling there will be bleeding gums, and there may be the phenomenon of separation of the gums and teeth, this is because after the removal of calculus, the gums have not yet recovered to the phenomenon of fit with the teeth, during this period of time, the teeth are particularly susceptible to tooth sensitivity, and there may be hot and cold stimulating pain, especially caries-affected teeth, which are particularly susceptible to symptoms of pulpitis, but subgingival scaling is a necessary treatment for periodontal disease. However, subgingival scaling is a necessary treatment for periodontal disease. After subgingival scaling, the gums can be restored to health, but the receding portion of the gums can no longer be fully restored. After subgingival scaling, there may be food blockage, and you may feel that your teeth are leaking, which is a normal phenomenon. In the future, you should brush your teeth normally and make use of flossing or gap brushes, and you can also choose to use a flosser or an electric toothbrush to maintain good oral hygiene, which will be beneficial to your periodontal health.