To avoid certain diseases, knowledge of the cause and treatment of such is a must. Get familiar with the many kinds of periodontal diseases and get ready for the worries it would give you knowing each. Periodontal diseases include: (1) Gingivitis, (2) Aggressive Periodontitis, (3) Chronic Periodontitis, and (4) Periodontitis As a Manifestation of a Systematic Disease. A good program of oral hygiene is the best way to avoid periodontal diseases. Plaque and potential source of tartar should be removed. However, using a dental product made from all natural ingredients is highly recommended to control the bacteria, but beware of products with chemicals or alcohol. These tend to dry the mouth out and therefore remove the body's natural defense against bacteria in the mouth-saliva.