Respiratory diseases may be caused by ingesting bacteria-laden drops of moisture from the mouth into the lungs. These ingested bacteria colonize the lungs’ lower reaches, creating the opportunity for pneumonia and other respiratory problems.

People with respiratory problems are also typically exposed to a stressed or low-functioning immune system. This encourages a much faster build-up of periodontal disease, which can aggressively attack the gums and teeth. The result is even greater stress on the immune system and a greater opportunity for lung bacterial infection.

The impact of periodontal disease on respiratory diseases cannot be overstated. Neither can the case of respiratory infection and a weak immune system.