In the early stages of gum disease, treatment usually involves removing the plaque and calculus in the pockets around the tooth and smoothing the root surfaces. This is called scaling and root planing. In combination with proper daily home care, this is all that is usually required to stop the development of the disease.
If you wait until the symptoms are more advanced, a referral to a periodontist may be necessary and, in some cases, surgical treatment.
Information as per the ODA https://www.oda.ca/oral-health-basics/oral-conditions-diseases/gum-disease/
Braganza Periodontics - Peterborough Periodontist