Periodontal treatment is the specialist cleaning of your teeth and gums to help control the bacteria that cause gum disease. Gum disease is caused by the germs (bacteria) which live in your mouth. The bacteria stick to your teeth, irritate the gums and make them bleed.
(Redirected from Ground effect in aircraft) In fixed-wing aircraft, ground effect is the increased lift (force) and decreased aerodynamic drag that an aircraft's wings generate when they are close to a fixed surface. When landing, ground effect can give the pilot the feeling that the aircraft is floating.
Lake Effect Snow events are snowstorms that form on the downwind side of a body of water with a concave coastline. These events are very localized, extending from just a couple of miles up to 30 miles and only a few miles wide. In the most extreme cases, the bands can extend 100 miles inland and about 30 miles wide.